Questions Asked on
January 23, 2017

Math
lisa wants to paint the ceiling of her restaurant.The ceiling is in the shape of a square Its side lengths are 48 feet suppose each can of paint will cover 192 square feet. How many cans will she need to pant the ceiling

MATH @Damon @ms. Sue
Given the function f(x) = 2(3)^x, Section A is from x = 0 to x = 1 and Section B is from x = 2 to x = 3. Part A: Find the average rate of change of each section. Part B: How many times greater is the average rate of change of Section B than Section A?

math
A pilot estimates that 5/8 of the fuelin the planes tank will be used when the plane reaches its destination. The tank contained 42,300 gallons at takeoff. How much fuel does the pilot expect to use?

Algebra
All the members of a construction crew work at the same pace. Four of them working together are able to pour concrete foundations in 32 hours. How many hours would this job take if the number of workers decreased 2 times?

Geometry
20. What is the volume of the sphere? Round the answer to the nearest cubic unit. (1 point) 268 cm3 2,145 cm3 17,157 cm3 536 cm3

Maths
Construct a triangle ABC IN WHICH BC= 5.5 CM ,ANGLE B=60DEGREE AND SUM OF OTHERtwo SIDEs is 8.6cm

Physics
Which of the following statements about Ohm’s Law is true? A. Keeping the same voltage and decreasing resistance decreases the current. B. To increase the current, decrease the resistance. C. Ohm’s law relates power, current and resistance. D.

Astronomy
1. How did the geocentric model explain the retrograde motion of planets? A. Earth moves faster in its orbit and passes the other planets. B. The planets move backward when they get too close to earth. C. The planets travel in circles as they move around

chemistry
4.8g of Mg were burn in 3.2g of oxygen. The MgO produced at a mass of 8g what is the equation of the reaction

physics
calculate the kinetic energy of a. A 1kg trolley traveling at 2m/s. b. A 2g (0.002kg) bullet traveling at 400m/s. c. A 500kg car traveling at 72km/h.

Seience
A soil sample contains living and nonliving materials which material was once living

chemistry
What is the predicted change in the boiling point of water when 4.00 g of barium chloride (BaCl2) is dissolved in 2.00 kg of water? Kb of water = 0.51°C/mol molar mass BaCl2 = 208.23 g/mol i value of BaCl2 = 3 A. 0.0016°C B. 0.0049°C C. 1.0°C D.

English
Give the best analogy. Culpable is to blame as ______. 1. vaunt is to modest 2. angry is to furious 3. august is to admire 4. misdemeanor is to felony answer: c

algibra
In two or more complete sentences, describe how you would draw the graph of the solution set for the following inequality. 3m+18 < 30

Social studies
Witch of the following actions is a check by the legislative branch on the actions of the executive branch ?

Mathematics
Mr.Zia borrows rs .25,000today with interest at 12%compounded annually .he agrees to pay rs.20,000 two years from today and the balance three years from today.find the amount of the final payment?

chemistry
What is the predicted change in the boiling point of water when 4.00 g of barium chloride (BaCl2) is dissolved in 2.00 kg of water? Kb of water = 0.51ÃƒÆ’Ã†â€™Ãƒâ€ Ã¢â‚¬â„¢ÃƒÆ’Ã¢â‚¬Â

Physics
An object is placed at a distance of 50cm from a convex lens of fical length 20cm .find the nature and position of yhe subject.

HELP PLEASE
I am extremely confused on how to balance a chemical equation. I have an exam tomorrow and I'm lost. In the book it says Chemical Equation: CH4 + O2 > CO2 + H2O Balanced Chemical Equation: CH2 + 2O2 > CO2 + 2H2O How did this happen? Thanks. Oh and what is

Math
Marcus plays basketball for nine hours each week his friend Louis spends 5/6 as much time playing basketball who plays more basketball? I think you multiply 9x5/6, is that correct?

math adv funcrions
2sin5xcos4xsinx=sin9x Can u do this without triple angle formula and how

Geometry help
27. Concrete can be purchased by the cubic yard. How much will it cost to pour a slab 12 feet by 12 feet by 9 inches for a patio if the concrete costs $54.00 per cubic yard? (1 point) $1,944.00 $972.00 $552.00 $216.00 28. Two square pyramids have the same

maths
∫(x^41)/(x^2 √(x^4+x^2+1)) dx

accounting
On, April 1, 2015, Lester Company received a bank statement that showed a balance of $ 8,950. Lester showed a $8,000 checking account balance. The bank did not return check No. 115 for $750 or check No. 118 for $370.00. A $900.00 deposit made on March 31

chemistry
3HgO→2Hg+O2 Which of the following can definitely be concluded from the equation and heat of reaction above? A. The reaction is spontaneous. B. The reaction is nonspontaneous. C. The reaction is endothermic. D. The reaction is exothermic. E. None of

General chemistry
How many grams of potassium sulfate are needed to prepare 150 ml of a 6.50 m/v% potassium sulfate solutions

Math
Susan was 20 years old when her daughter janet was born what will Janet's age be when their age ratio is 7 :2 what I got is x = 2/9(x + 20) but it gives me an uneven number and not sure if it's correct

Grammar
I am writing a compare and contrast essay between private school and public school can you help me write it

PHYSICS
If a 71.0 kg , 1.70 m tall human could jump to the same height compared with his length as the flea jumps compared with its length, how high could he jump, and what takeoff speed would he need?

algebra
Please show solution to this problem. In triangle A, the longer leg is 6 more than the shorter leg and the hypotenuse is 6 more than the longer leg. Find the lengths of each side of this right triangle. Show all calculations. Short leg = _______ Long leg =

English
Consider the main characters from "Stolen Day" and "The Night the Bed Fell." In a paragraph, discuss which character learns the most and which one learns the least. Use details from the selections to support your ideas. Use the reading selections to help

Language Arts
1. Which of these statements reflects subjunctive mood? I wish it were possible to go to the movie tomorrow. If we go to a movie, will I be able to have popcorn?*** She hoped to go to the movie and have popcorn. He couldn't go to the movie without his

math
what is the slope of the line x=5

math
The sum of the first 9 terms of an arithmetic series is 144, and the sum of the first 14 terms is 329. Find the first 4 terms of the series.

Chemistry pls help DR.BOB
What intermolecular forces are responsible for neoprene's stretchiness?

Econ
given the following information, calculate nominal GDP, real GDP, and the percentage increase in year two. Be sure to label the answers. Describe what is taking place in the economy. In the base year, 10 new cars were sold at $7,000 each, 20 new office

Microbes and Society
Every state has an official animal, flower, and/or tree, but one state has an official bacterial species named in its honor: Methanohalophilus oregonense. What is the state and decipher the meaning of the genus name? (Note: ense =” belonging to”). the

Math
an employee is paid $3600 for the first month. she is paid an additional 1% at the end of the second month, which means a total of $3636. she continues to receive a 1% raise each month for a full year. what is her total salary at the end of the year?

consumer math
Find the volume of the following solid figure. Use = 3.14. V = 4/3r3. A sphere has a radius of 5.7 inches.

Geometry
7. What is the surface area of a conical grain storage tank that has a height of 24 meters and a diameter of 16 meters? Round the answer to the nearest square meter. (1 point) 837 square meters 848 square meters 1,991 square meters 1,923 square meters 8.

Chemistry
A student is given 2.94g of a mixture containing anhydrous MgCl2 and KNO3. To determine the percentage by mass of MgCl2 in the mixture, the student uses excess AgNO3 to precipitate the chlorides ios as AgCl Starting with the 2.94g sample of the mixture

Chemistry
True or False? An identical cylinder filled with the same pressure of hydrogen contains more molecules because hydrogen molecules are smaller than oxygen molecules.

Math
Length of rectangle is 8 metres less than twice its breadth. If the perimeter of the rectangle is 56 metres.Find its length and breadth

Anatomy and Physiology
when the aortic valve opens into the aorta blood flows A. out of the body B. into the right atrium *** C. into the left ventricle D. out of the pulmonary artery my answer : C Am i correct?

Maths
I have this question, don't know where to start! The total length of ropes a,b and c is 270cm. Rope a is 20cm longer than rope c, but 50cm shorter than rope b. What is the length of rope b? Have tried dividing 270 by 3 giving 90, then just moving figures

math
Five divers found three chests of coins. they decided to divide the treasure evenly. what portion of the chest would each one get ?

american goverment check answers
1. What are unalienable rights? (1 point) rights that cannot be denied rights created by governments rights that can be limited rights earned with age 2. Which of the following is an example of an unalienable right limiting the powers of government? (1

Math
Write two times,in digital notation, when clockwise angle between the hands is: a. Less than one right angle : b. Less than two right angles : c. Greater than 3 right angles:

math
What is the function rule with input of 18,6,10,22,4,14 and output of 13,7,9,_,_. The last 2 outputs are blank as we need to figure out the rule and then fill in the blanks.

Geometry
7. What is the surface area of a conical grain storage tank that has a height of 24 meters and a diameter of 16 meters? Round the answer to the nearest square meter. (1 point) 837 square meters 848 square meters 1,991 square meters 1,923 square meters 8.

chemistry
A sample of ethanol 0.78g was burnes at a final temperature of 20.9°c. The mass of water is 50.0g. Calculate the standard enthalpy change of combustion of ethanol.

history
What was the formal name of our country?

Physics 1
In coming to a stop, a car leaves skid marks 62 m long on the highway.Assuming a deceleration of 4.30 m/s2 , estimate the speed of the car just before braking.

accounting
Need advise in how to set up? On, April 1, 2015, Lester Company received a bank statement that showed a balance of $ 8,950. Lester showed a $8,000 checking account balance. The bank did not return check No. 115 for $750 or check No. 118 for $370.00. A

chemistry
The radius of a niobium atom is 131 pm. How many niobium atoms would have to be laid side by side to span a distance of 3.20 mm?

physics
A space vehicle accelerates uniformly from 80 m/s at t = 0 to 165 m/s at t = 10.0 s .How far did it move between t = 2.0 s and t = 6.0 s ?

Math
Which makes this a true statement? _____ rectangles are squares. A. All B. Some*** C. No D. None of these I think it's this please correct me

college algebra
total of $10,000 is to be divided between sean and george, george will receive $3000 less than sean. how much will each get? thank you in advance

Math
How do you divide a polynomial function by another polynomial function.

college algebra
a 1 degree equation 4 over 2x+3 + 1 over x1 equals 1 over (2x+3)(x1)

Chemistry
Calculate the pH of a solution made by mixing 60.0 ml of 0.80 M N2H4 (a weak base) with 50.0 ml of 0.50 M HCl. (Kb for N2H4=1.7 x 10^6) Can I use the Henderson Hasselbach equation here?

permutations problems
5children are to be seated on a bench.In how many ways can it be done?

Math
susan was 20 years old when her daughter janet was born. what will Janet's age be when their age ratio is 7:2

Schuelke
A sample of an ore of iron, hematite, is 70% Fe2O3. How much iron is there in 5 kilograms of the ore? Answer in units of g.

CHEMISTRY
Write a balanced ionic equation for the redox reaction in dilute acidic solution between trioxodate(v)anion (IO3) AND IODIDE ANION (I)

Chemistry
How do you obtain pure crystals of sodium chloride from a mixture of sodium chloride and activated carbon powder

Maths
Explain why a multiple of 80 is also a multiple of 8.

chemistry
Instead of oxalate anion, if we use ethylenediamine as the bidentate ligand, what would be the product? What are the donor atoms in en?

maths
I think of a number, hen multiple by 3 and 17 added ,the result is the same as if 4 multiply the number and 10 dedut it find the number

11th Grade Algebra 2
Not asking for answers just some explanations can someone explain how to do (3x^5+12x^4+11x^3+2x^24x2)/(3x^21)

General chemistry
What is the m/m% of NaOH in a solution prepared with 40.0 g NaOH and 400.0 g of water

Math
jeff has 12 more toy cars than toy trucks. In all, he has 19 toy vehicles. How many toy trucks does Jeff have?

science
near point of an eye is 50 cm and far point is 4 m . Which lenses should be use t read as well as see movie clearly?

General chemistry
Calculate the molarity of 500.0 ml solution containing 26.5g Na2CO3

Math
A graph that represents $20 plus $0.25 permile

biology
Scientific Method Project In a 2page maximum type written paper, complete research on a topic of question from the readings. Utilizing the scientific method, document the application of the steps in determining your hypothesis and findings. Each step is

Precalulus
Kindly help with this question. Thanks. Solve the following equation for x. 2/3x  7  3/2x  1 = 3/2

math
how do you simplify square roots that end with a decimal to make it look like 3√2? i think its called a radical?

algebra
I think of a number,when multiplied by 3 and 17 added,the result is the same as if 4multply the numbers and 10 deduct it.find The number

life science
why dna is able to play a role in the transmission of hereditary information

Math (Pre algebra )
Paul's car gets 32 miles per gallon of gasoline. How many gallons does he need to travel 368 miles?

Study School (Math)
the sum of the digits of a twodigit number is 9.if 9 is added to the number, then its digits interchange their place. what is the difference in cube of the digits?

English
In English conversations, people often say that they agree or disagree with each other. There are many ways of agreeing or disagreeing and the "one" you use depends on how strongly you agree or disagree.  What does "one' refer to here?

Science
A picometer (pm) is equal to 1 x 10^12 m. The OH bond lengths in water are 95.8 pm,while SH bond lengths in dihydrogen sulfide are 135 pm. Why are SH bonds longer than OH bonds? Is it because Sulfurs mass is greater than Oxygens mass? Please correct

Math
use absolute value to describe the relationships between a point total and the number of points needed?

Medical Transcription
A fact was constricted, appropriate, congruent. Speech was coherent, normal rate, rhythm, and volume. Thought process was goal directed. No looseness of associations or flight of ideas. Thought content showed he denied auditory or visual hallucinations.

Math
An airplane flies for 3 hours with a constant speed of 696 km/h and then for another 1 hour 40 minutes with a constant speed of 1080/h. What distance did it go?

Geometry
24. If the scale factor of two similar solids is 4:17, what is the ratio of their corresponding areas and volumes? (1 point) 4:289 and 17:4,913 8:34 and 12:51 16:289 and 64:4,913 64:4,913 and 16:289 25. The volumes of two similar solids are 1,728 m3 and

Maths
Construct a triangle pqr in which qr= 7.2 CM,ANGLE q=45 DEGREE and pqpr=3.4cm

Spanish
What is a bodegón? What is its significance?

PreCalculus
The base of the fish tank below has a length of 40 inches, a width of 20 inches, and height of 1.5 feet. The tank starts off with a water depth of 7 inches. You then add water to the tank at a constant rate such that the water level increases 1 inch every

English
Now do you have any opinions different from the speaker? Raise your hands, please and let us know your different opinions. You can make a counterargument about the speaker’s insist. The speaker should point to one student, and then he or she should make

Ethics
This question refers to the ethical issue of giving organ transplants to prisoners who have been sentenced to prison for the commission of crimes. From a utilitarian perspective, which of the following is an argument against allowing prisoners to receive

ELA
Read the sentence. The old farmhouse sat at the end of the _______ road. Which word describes the road in the most negative manner? 1. (Desolate) 2. Quiet 3. ancient 4. Lonely Ms.Sue is this right

maths
solve the equation 16x^2 4x^x1 12 = 0

Writing
I am writing an intro paragraph for comparing and contrasting private schools and public schools. NEED HELP!!

value
LIST THE LIMITATION OF HUNMAN RIGHT

Math
55 is 30% of what number? I think its 183? Can someone tell me if im wrong/explain to me how to do it? I dont really want the answer I just wanna check and see if im right/ why im not right Thanks ^^

Civics
The legislative branch checks the power of the judicial branch by appointing federal judges dissolving federal courts declaring judicial actions unconstitutional impeaching and removing judges What is the answer?

chemistry
A metal x form different chlorides.If 12.7g of chloride A and 16.3g of chloride B contains 7.1g and 10.7g of chlorine respectively show that the figures agree with the law of multiple proportions. write their formular

math
In a class, 4/5 of the girls have brown hair. Of the brownhaired girls, 3/4 of the have long hair. Of the girls with long brown hair, 1/3 of them have green eyes. How many of of the girls with long brown hair have green eyes. 3/5 * 1/3?

6th grade math Variables and ratios
I need help I don't know where to start or what to do I need guidance. Triangle A,B, and C have the ratio of the sides of triangle A to triangle B is the same as ratio of the sides of triangle B to triangle C. Triangle A has a base of 5 , Triangle B shows

Science
Electric circuit with three cells each of emf 2v and negligible internal resistances are connected in series with an ammeter two resistors of resistance 2 and 6 and a key. 1. Draw a diagram for the above information 2.calculate the current in the circuit

ELA
Jarren's training and improved diet give him ______ Which of these best completes the sentence to express the idea that Jarren is in peak physical condition? 1. (vigor) 2. ambition 3. muscle 4. fatigue Ms.Sue is this right

thermodynamics 2
Calculate the change in enthalpy of a superheated steam at 700 psia and 680°F is expanded at constant entropy to 140 psia.

math
You deposit $10,000 in an account earning 3% interest, compounded semimonthly (twice a month). You plan to leave the account untouched for 25 years. How much interest will you earn over the 25 years?

SOCIAL STUDIES PLZ HELP
What is one thing that helped make the US a world power? A) The country experienced the great depression B)The country fought in world war 1 ** C)The country signed the peace of Paris D)The country fought in the french and Indian war. Please help me! I'm

English
What does the knife symbolize in the story "knife"?

Social Studies again!
Please help! I'm not the greatest with SS. If you answer, please exlain if ou can, this way I can understand it better. O.K, here it goes. The United States feared that the Soviets where trying to expand there power throughout the world. This fear resulted

Science
Relate to some objects your nose is in motion when you run. Relate to others it is not motion. Give one example of each

Math
A high fountain of water is located at the center of a circular pool as shown in the figure below. Not wishing to get his feet wet, a student walks around the pool and measures its circumference to be 19.0 m. Next, the student stands at the edge of the

algebra
One more triangle question,please. In this triangle,the short leg is x and the longer leg is 1/2x + 11. If the hypotenuse is 2x + 1, what are the lengths of each side of this right triangle? Please show all calculations. Short leg = ______ Long leg =

Science
Suppose you find fossils of clams in rock high on a mountain. what can you infer about the mountain?

physical science
Two forces of 60N and 80N act a point .sketch a tail to head diagram and determine their resultant

Math
Elizabeth pumps 3 1/2 gallons of gas in 1/4 of a tank. How many gallons does a full tank hold? Write an expression to represent the problem. Solve the problem:

Math
There are 25 children at a party,each child eat 3 cake.how many cakes are eaten altogether?

Social studies
how did the spoils system affect president james Garfield and his successor Chester A. Arthur?

English
What must people know or understand about a place in order to belong there? How do they gain that knowledge or understanding? What types of experiences can tell people that they do not belong? In what cases might a person draw conclusions about others

Math
On a soccer team 40% of the goals are scored by the star player. If 70 goals are scored all season, how many are scored by the rest of the team?

Math
A marathon runner runs 10 1/2 miles in 2 hours. What is her rate? Write an expression to represent the problem. Solve the problem:

English
Some of the following sentences need semicolons. Above the sentence, write the semicolon and the words before and after it. In some sentences,semicolons will replace commas. If a sentence already has correct punctuation, write C on the line provided 1.

social studies
1.) What influence did Henry Ford have on other industries of the time? A. His keenness for advertising began a marketing revolution? **** B. His creation of the automobile engine directly led to first flight. C. His production of passenger automobiles

School
Who is Jean Kessner?

English
Give the best analogy. Flagrant is to surreptitious as 1. foul is to penalty 2. brazen is to hidden 3. malfeasance is to wrongdoing 4. supercilious is to scornful answer: b

university of Port harcourt
a body at rest is given an innital uniform acceleration of 8.0m/s2 for 30s,acceleration reduce to 5.0m/s2 for d next twenty sec.body mentains speed ten for 60s after brought to rest in 20s draw in graph 1.using d graph to calculate 2.maximum speed attain

Math
Jean is making bar graph for a presentation .She is planning for the length and width of the bars to have a ratio of 3:2, so that they satisfy this equation 2/=w If one bar is 7 centimeters wide, what should be its length? (21 cm) 14 cm 10 1/2 cm 4 2/3 cm

Math
Solve: Log5(x2) + log8(x4)= log6(x1)

Math
Tylenol 3 has 16 mg of Codeine per 11 ml of liquid. A safe dose of Codeine is 4.8 mg/Kg/Day. A patient who weighs 215 pounds needs a Tylenol 3 prescription. There are 2.2 pounds for every 1 kilogram. How many kilograms is this person's mass? How many

chemistry
The radius of a strontium atom is 215 pm. How many strontium atoms would have to be laid side by side to span a distance of 2.66 mm?

Chemistry
solid sodium reacts violently with water producing heat, hydrogen gas and sodium hydroxide. How many molecules of hydrogen gas are produced when 65.4g of sodium are added to water? 2Na(s)+ 2H2O(l) >. 2NaOH(aq) + H2(g). Can someone please explain this

Calculus
Can you please check to see if these answers are correct? I have provided my work as well! That you! This is much appreciated!! 1. What is the volume of the solid that is generated by revolving the region bounded by the curves x = 3y^22 and x = y^2 and y

Math
A man sold two cycles for Rs.3000 each gaining 20% on the other.Find his gain or loss percentages on the whole transaction

Math
An expression is shown. 12.295(2.24×3.9)

Math
Good evening everyone. I am very confused on how to work on the below problem. Ingrid walked her dog and washed her car. The time she spent walking her dog was 1/4 the time it took to wash her car. It took Ingrid 14 minutes to walk the dog. How long did it

Chemistry
A sample of plant extract is subjected to thin layer chromatography using aluminum backed plates of 0.25 mm thickness. The sample extract is suspected to contain a series of related compounds with hydroxyl and ester functional groups. Suggest a suitable

Chemistiy
For the reaction: Ba(OH)2 (s) + 2 NH4Cl (s) → BaCl2 (s) + 2 H2O (l) + NH3 (g) If ammonia gas (NH3) is produced at the rate of 0.72 mol/s, what is the corresponding rate of consumption of ammonium chloride? ANS: NH4Cl is consumed at a rate of 1.4 mol/s,

aps
There are 26 step on flpor at the time saad comes down two step imad step up one step When will tyey meet at what step?

geometry
ABCD is a parallegram.if AB =2AD and p CD middle point then descraibe m

Spanish
What is one difference between popular beverages in Los Estados Unidos and those in the Spanishspeaking world?

English
1. First, I delivered papers, then I practiced soccer. 2. Dan, I know you are tired, but the laundry is waiting. 3. Phillip, Homer, and Carla wrote poetry, Luis wrote a play. 4. The steady rain continued, yet nobody cared 5. Helen, please sing the soprano

Math
Write two times, in digital notation, when the clockwise angle between the hands is: a less than one right angle b less than two right angles c greater than three right angles

Yoruba
Please help me translate : it burns the leaves,it dries the roots,it wither the flower,yet it is very useful

algebra
What are the coordinates of these two equations after solving using substitution? 2xy=11 and x+4y=17

Yoruba
There is no animal without plant,there is no plant without water,there is no cloud without the sun,the sun is essential

Science
Suppose that you are a Walking down the street describe the forces acting on you and use Newton's laws of motion to describe your motion

Math question
CAN A DECIMAL BE GREATER THAN A WHOLE LIKE 7.5 < > 1

math
A rectangular tablecloth is 2.5 m long. Trim is to be sewn around the perimeter of the cloth but there is not enough. What decrase in width will make the perimeter 0.4m shorter if the length remains the same?

Math
The cost of one dozen bananas is 20 then 9 bananas is

4th grade math
Find the value of each expression in lowest terms 3/4 + 1/16=

Math
I am less than 15. I am odd. If you add my two digits together the total is 2. Who am I?

math
Five divers found three chests of coins. they decided to divide the treasure evenly. what portion of the chest would each one get ?

math
If a pentagon has five sides. Two sides are three times the length of the shortest side. Two sides are five inches longer than the shortest side. Write and simplify an expression for the perimeter of the pentagon.

Math
A man sold two cycles for RS.3000 each gaining 20% one and losing 20%on the other.Find his gain or loss percentages on the whole transaction.

Math
A parking garage charges $2.00 to enter the garage and $1.50 an hour to park. Use the coordinate plane to graph this situation.

Ophthalmic
Where must an object be placed in front of a plus lens in air of focal length 8cm to give an image: i. 25cm behind the lens? ii. 25cm in front of the lens?

physics
A simple pendulum has a length of 1.25m.calculate its period and what is the percentage increase of the period?

Math
A shipping box shaped like a rectangular prism has a height of 6ft and a volume of 96ft3, what is the length and width of the base for the box? Show the description whit a grid.

Science
1. One potential problem with genetic engineering? 2. I can genetic engineering never solve all of mans problems? 3. What are two biblical principles that must be considered when making decisions about human genetic engineering? Very much appreciated!

Chemistry
Assume that you have a liquid in a cylinder equipped with a movable piston. There is no air in the cylinder, the volume of space above the liquid is 200 mL, and the equilibrium vapor pressure above the liquid is 29.0 mm Hg. What is the equilibrium pressure

math
if there are 24 students and 5 less girls than boys , how many girls are in the class. I don't think there is a solution to this.