Friday

January 20, 2017
**9th grade**

how do i solve 3y-4+3x-5x+2 and solve for x and y

*Thursday, January 7, 2010 by maddie*

**9th grade**

how much heat is needed to change 20g of ice at negative 10 degrees c to water vapor at 200 degrees c

*Tuesday, January 5, 2010 by cait*

**9th grade science**

1)write the fomulas for the following compound: Magnesium hydroxide. 2)Write the names of the compound: Ba(ClO3)2 *the numbers are the subscripts* I really don't understand how to do those two, I did the rest of them. I could really use the help. THANKS!!

*Monday, January 4, 2010 by Anonomous*

**9th grade Math**

Discuss how you might use the ski slope to help remember the numerical slope of a vertical line.

*Thursday, December 10, 2009 by Mia HELP!!*

**9th grade**

10 gm of silver nitrate solution is added to 10 gm of sodium chloride solution what change in mass do you expect after the reaction and why?

*Thursday, November 12, 2009 by Princess*

**9th grade**

10 gm of silver nitrate solution is added to 10 gm of sodium chloride solution what change in mass do you expect after the reaction and why?

*Thursday, November 12, 2009 by Gazal*

**9th grade**

the variable cost is 10/km and a 2.5-km trip costs $40, determine the equation relating cost, C, in dollars, and distance, d, in kilometers

*Friday, October 23, 2009 by betty*

**9th grade (math)**

im learnin about y=mx+b 1.describe the line you think each equation represent Y=x, y=5, x=-3 2. The equation of a line is y=mx+2. determione the value of m when the line passes through each point D(12.5) s(1.-3) e(-2.6) a(-5.1)

*Saturday, October 17, 2009 by jacky*

**English -9th grade**

Is Sam going to sleep early tonight: declarative imperative exclamatory interrogative. I didn't fill out the answer causing me to get it wrong. I thought it was an declarative.

*Sunday, September 27, 2009 by melissa*

**9th grade**

Select any one household product and create a mini poster displaying a "GREEN ALTERNATIVE". HOW DO I DO THAT??? GIVE ME SOME EXAMPLES... OR CLUES... OR METHODS... OR SMALL DESCRIPTIONS.

*Wednesday, September 23, 2009 by Ashlie*

**9th grade**

in which of the following sentences does the subject come after the verb a. on the next street, you'll find the shoe shop. b. whenever he's in town, jeremy likes to go fishing. c. brock traveled over miles of dirt roads. d. where is my elvis CD Thank you!

*Sunday, September 6, 2009 by Misty*

**9th grade world history**

What is the geographic location of ancient Carib? What was their method of substience? What did they make with arts and crafts? What were their religious beilefs? What were their customs? And what was their effect on European contact and culture?

*Monday, August 31, 2009 by chasadena smith*

**9th Grade Biology**

Has plant life on earth evolved and have rose bushes always been around on earth?

*Sunday, May 31, 2009 by Meghan*

**9th grade global**

one effect of rgged, mountainous geography on the civilization of ancient Greece was the development of -absolute monarchies -separate, independent city-states -extensive trade with the Persians -belief in one God

*Sunday, May 31, 2009 by Chantel*

**9th grade Global**

China under th Han dynasty and the Roman Empire were similar in that both grew wealthy because they..... -developed extenive trade networks -encouraged democratic ideals -established free-market economies -created classless societies

*Sunday, May 31, 2009 by Chantel*

**9th grade Math**

ok I need help with this math question and will need help with a few others after this one is answered. -8=y/4 <-- Y over 4 i think Y = 2 but idk help me

*Thursday, April 23, 2009 by bollocks*

**9th grade health**

The _______ region is the lower middle abdominal region located between the right and left iliac regions. A. hypogastric C. hypochondriac B. epigastric D. lumbar A

*Wednesday, March 25, 2009 by Anonymous*

**9th grade**

I need to write an essay on something I have accomplished using 5 adjectives and 2 inference words. What are some examples of inference words?

*Wednesday, March 18, 2009 by Joanna*

**9th grade**

My question is on scales etc.. heres the question | The Sears Tower is 1450 feet tall. If a model is 25 inches tall, find the scale.

*Thursday, February 26, 2009 by bollocks*

**SCIENCE**

how do i reword this sentence to a 9th grade leverl. students know that charged particles are sources of electric fields and are subject to the forces of the electric fields from other charges.

*Monday, January 26, 2009 by marie*

**9th grade English**

I'm having a hard time understanding the difference among a subordinating conjunction, a correlative conjunction, and a coordinating conjunction. Thank you! Thank you!

*Friday, January 9, 2009 by Lauren.*

**sra McGuin**

Hi - where would I scan these to - thanks again my child thinks you are the best - nice to see people who make such a positive impact on kids. 9th grade and all honors classes is tough.

*Thursday, January 1, 2009 by sam's mom*

**sra JMcGuin spanish**

Hi This is sam's mom - you have helped my child enormously - Whenever work is done with you the grade is amazing. Finals ae coming up and I think you are close to us. We live on the west side and go to school in the valley. SO anywhere would be convenient - We have a tutor...

*Thursday, January 1, 2009 by sam's Mom*

**9th grade american government**

What is required to become secretary of state? How it affects our govt? Job description? Salary? When 1st established? Where located? Why is it important?

*Tuesday, December 16, 2008 by nay*

**9TH GRADE ALGEBRA**

solve for the variable ÂÃ£(square root) ÂÃ£y+6 - ÂÃ£y = ÂÃ£2 would i square both sides first? im stuck

*Monday, December 8, 2008 by lyne*

**9th grade chemistry**

fill in the name or formula for the oxyanions of chlorine the only one i need help with is the name for [ClO4]-

*Thursday, December 4, 2008 by helppp*

**9th grade**

would you expect the following atom to gain or lose electrons when forming ions? what ion is the most likey? The atom is In how would i do this?

*Thursday, December 4, 2008 by helppp*

**9th grade**

for my physical science class were supposed to name ionic compounds and change the name into a formuala but i don't understand how to do it my teacher didn't explain it fully. Ex:Na2CO3= Sodium Carbonate Sodium phosphide=Na3+P-3

*Tuesday, December 2, 2008 by Evan*

**9th Grade Math**

Hey, I finished my math homework, and im not so sure i did it correct, so can someone do this question and i will look at the answer to see if my work was correct this is State and Justification Given : m<4 = 130degrees, m<1 = x+10 , and m<2 = x Prove : m<1 = ...

*Tuesday, December 2, 2008 by Victor*

**9th grade**

at 30degrees celcius, 80 grams of potassium bromide is dissolved in 100 grams of water. is this solution unsaturated, saturated, or supersaturated.

*Monday, November 24, 2008 by kim*

**9th grade**

two men worked 8 hours each and they built 32 frames for sheds. what is the productivity or output per hour add ______ hours hours+_____ hours here ______ hours

*Monday, November 17, 2008 by alyssa*

**science**

Can anyone think of a fun experiment to do with blood for a 9th grade science class? Try not to be too flashy-my teacher has a rather limited budget

*Monday, November 17, 2008 by VICTOR*

**general**

Some states have high school starting at 9th grade while some start only in 10th. so when are the kids ready for AP classes? is this school dependent?

*Thursday, November 6, 2008 by andy*

**9th grade**

This question is from a textbook THE AMERICANS. 1.What geographical feature determined the western boundaries of the Southern and Middle colonies? 2. How did the New englnad and Middle colonies economies differ in general from the economy of the South? What may accounted for ...

*Wednesday, October 1, 2008 by Manjinder*

**9th grade**

what makes sir launcelot a hero? from the book title: the tale of sir launcelot du lake by: sir thomas malory translated by: keith baines

*Monday, September 29, 2008 by lmcisthename*

**9th grade**

Hi, am trying to find out if my son did a collage right ? It is due tommorrow- it is a who i am collage which is suppose to show pictures of his personality that people know about him and things people do not know about him?

*Monday, September 29, 2008 by rosemary*

**9th grade english**

diagramming the sentence LATE IN THE EVENING ROBERT CAME LATE TO DINNER RIDING ON JOHN'S HORSE AND WE GAVE HIM HAM AND SOME BOILED BEANS THANKS

*Thursday, September 25, 2008 by polly*

**Satire-Writeacher**

Is this a good start? Yesterday I was the photographer for a small court house wedding. As I was waiting for the couple to finish the necessary paperwork for a legal marriage, I couldnâ€™t help but overhear the daughter of the bride, a 9th grade student, ...

*Saturday, June 21, 2008 by Adams*

**math& english**

if there is any chance that someone could help me with math or english over messenger i am far behind in those subjects and totaly lost in algebra1 my SNs are babeangel747 for both thanks in advance what grade are you in? 9th and 10 i should be in 11th

*Friday, August 11, 2006 by cassii*

**9th Grade Honors English**

In the book Inside the Walls of Troy, what view does the reader get through her eyes? I know that Cassandra loathed her gift of foreseeing the future and that she didn't want anyone to find out about her gift,in fear of being judged and criticized for it, but I can't ...

*Wednesday, October 12, 2016 by Lillith*

**Thx again for another year of success**

Hey ms. sue, i am now in 9th grade thx to you i just wanted to say thx again for helping me last year!!! and this year a couple of times :) :DDDD

*Sunday, May 15, 2016 by Jam*

**medical Terminology**

The most easily treated tumor is A. Grade I. B. Grade V. C. Grade III. D. Grade X. A is my answer

*Sunday, February 28, 2016 by debbie*

**Algebra 1 - 9th Grade**

A contestant on a quiz show gets 50 points for every correct answer and loses 100 points for each incorrect answer. After answering 24 questions, the contestant has 300 points. How many questions has the contestant answered correctly? Incorrectly?

*Friday, January 29, 2016 by Anon*

**Science Fair Project**

Is this Science Fair Project that I am doing a 9th or 11th grade project.... Up,Up, and Away in your own Hot-air ballon !Search up this Project and then tell me!

*Wednesday, December 23, 2015 by Zarmin*

**algebra**

An â€œAâ€ is considered 4.0, a â€œBâ€ is 3.0, a â€œCâ€ is 2.0, a â€œDâ€ is 1.0, and an â€œFâ€ is 0. In your ...

*Tuesday, September 22, 2015 by Kristen*

**English**

Posted by rfvv on Monday, July 13, 2015 at 9:33am. Lesson Plan .... Standards Addressed: General Goal9s): Specific Objectives: ...... ===================== In a leson plan, what is 'Standards Addressed'?â€¢English - Writeacher, Monday, July 13, ...

*Tuesday, July 14, 2015 by rfvv*

**math**

I have a question I would really appreciate the answer. If 15% of my grade is 74% and 96 is 15% of my grade and 40% of my grade is a 60.5% without the final counting for 30% what is my grade? Please help thank you.

*Friday, June 26, 2015 by kim*

**English**

Can you give me reasons why becoming a better community is important. My Original Essay Question: How can cities in the U.S. be better designed to create a safer and more economically productive community? I need you list a way or (a few ways) becoming a better community ...

*Tuesday, June 9, 2015 by Anonymous*

**9th grade geometry**

Rounded to the nearest hundred cubic meters, what is the total capacity (cone and cylinder) of the storage container? the cone is on top of the cylinder. the radius of the cone is 6 meters and the height of the cone is 8 meters. the height of the cylinder is 10 meters. im ...

*Sunday, April 12, 2015 by evan*

**9th Grade Math**

Naulluq is cutting ice blocks from the lake for her mothers drinking water tank. The cylindrical tank has a volume of 4x^2π. Once each block has melted, it will have a volume of 3x^2. How many blocks does she need to cut so that her mothers tank will be filled when the ...

*Tuesday, February 10, 2015 by Troy*

**physics**

9th grade physics sketch a picture of the initial total velocity for the projectile when the angle is at 0 degrees, 30 degrees and 60 degrees. Resolve each into vertical and horizontal components. No velocity given

*Wednesday, December 17, 2014 by shilpa*

**MATH**

there are 400 students at smith Elementary school 1/4 of the students are in fourth and fifth grade, 1/10 of the students are in grade 3, 2/8 are in second grade and 2/5 are in first grade . How many kids are in each grade? (4th and 5th have an equal amount)

*Monday, March 24, 2014 by MANISH*

**Biology**

Is there any biology websites for teens??? (NOT games! notes and quizzes to practice). The Science of Biology The Chemistry of Life Cell Structure and Function Photosynthesis & Respiration Something REALLY easy to understand(btw I'm going to the 9TH GRADE). please help (...

*Wednesday, July 17, 2013 by Laruen*

**statistics**

The grades on the final examination given in a large organic chemistry class are normally distributed with a mean of 72 and a standard deviation of 8. The instructor of this class wants to assign an â€œAâ€ grade to the top 10% of the scores, a...

*Sunday, March 24, 2013 by Sarah*

**Sociology/Psychology**

I'm taking Sociology 1st semester and Psychology 2nd semester when I go to the 9th grade. I'm just curious but is there any topics (interesting ones) in Sociology and Psychology.

*Friday, September 28, 2012 by Laruen*

**9th Grade Biology**

Assume that the fish have an average mass of 280g. The average caloric value is 8kcal/g. The heron is able to digest 60% of the fishesâ€™ mass. How many will it need to eat to sustain its caloric intake of 3,000kcal/day?

*Thursday, September 20, 2012 by Aidan*

**Physical science**

If you put a 9th grade student in a bathtub and he foisted with most of his head and upper chest above water, how much water would spill out? Additional Information: Bathtub was full of the brim Student is male, and has a normal male IQ (85) Student weights 80kg Student has a ...

*Saturday, September 15, 2012 by Maria*

**math**

My teacher never specifically told us how to do these type of problems and now i have 10 of the same type of questions for homework due when i come back to class 2 days. a^7b^6 ________ a^5b Im not asking for the answer but the steps to get to the answers to these type of ...

*Tuesday, August 28, 2012 by maci*

**geography**

Thank You and I did some more questions. Can you check them? 1. Is the Antarctic Circle north or south of the equator? South of the equator 2. All lines of longitude are measured east and west of what imaginary line? The Prime Meridian. Ms. Sue the 9th grade Algebra question I...

*Sunday, August 26, 2012 by Reed*

**8th grade math**

A cylinder has a cone on top. The base of the cone is congruent to the base of the cylinder. The diameter of the base is 16ft. The height of the cylinder is 16ft. and the height of the cone is 9th. What is the volumeof the entire figure?

*Tuesday, April 10, 2012 by Piggy*

**9th grade physics**

If a transparent material has a refractive of 2.0; a) calculate the critical angle b) if the refractive index were less than 2,0, would the critical angle be greater or less than before? Im super confused at this :(

*Saturday, March 3, 2012 by Cathy*

**Math Lit**

In a school there are 122 grade 8s, 105 grade 9s, 134 grade 10s, 109 grade 11s, 90 grade 12s. Express Each Class as a percentage of the whole school.

*Sunday, February 5, 2012 by Thabo*

**9th Grade Classes**

I was reading my school district program of studies and I found this section in for high school coures. - English 9H - Integrated Algebra A - Earth Science - Global History and Geography I or H - French Beg. 1 - Orchestra (a days)/ Health (b days) - Studio Art I - African ...

*Sunday, December 18, 2011 by Laruen*

**9th grade Biology**

4. After the temperature reaches 33 degrees Celcius, the rate of photosynthesis declines. Using knowledge of enzymes, explain why this happens. 6. As the amound of CO2 increases, what would happen to the rate of photosynthesis? And as the amount of CO2 increases, would the ...

*Thursday, October 27, 2011 by Madison*

**To Ciara**

Please do not post any more insurance questions in this forum. I don't believe they are 9th grade questions. They look more like ads for insurance. If you post any more you'll be banned from posting on this board.

*Saturday, October 22, 2011 by Ms. Sue*

**Biology-9th grade**

I'm not sure how to answer one of my homework questions. Is one function of the alveoli to filter out dirt and pollen before it reaches the lung and why or why not. I don't think it is because the alveoli are used to oxgenate the blood, correct. I don't think they ...

*Sunday, October 9, 2011 by Sidney*

**Spanish-9th grade**

We are learning about animals and I have to write sentences describing animals. Are these correct?Thanks for checking them 1.El venado cafÃ© es muy bonito. 2.El elefante gris es muy inteligente. 3.La jirafa marrÃ³n es muy alta y delgada. 4.La ardilla ...

*Tuesday, September 20, 2011 by Shelby*

**9th grade integrated algebra**

a tree casts a 25 foot shadow on a sunny day if the angle of elevation from the tip of the shadow to the top of the tree 32 degrees, what is the height of the tree to the nearest thenth of a foot?

*Sunday, May 22, 2011 by michaela*

**Spanish -9th grade-Please check and advise**

I need to write about my geometry class and what I do in the class. I need to use "la tarea" in the sentence. I'm not sure if I could use this to describe the calculations I do. I'm confused how to even conjugate or use this. Would it start with "Hago la...

*Monday, May 16, 2011 by Becky*

**9th grade polynomials**

How do you write the expression for the area of the rectangle If the length of a rectangle is two more than three times it's width,then write an expression for area of the rectangle Find the perimeter of the rectangle in problem 1.

*Thursday, February 17, 2011 by Corey wicks*

**Math 1 9th grade**

A bag contains 3 green marbles and 6 blue marbles. What is the probability of drawing a blue marble, then another blue marble, then a green marble, replacing the marble after each draw?

*Thursday, January 20, 2011 by Sandra*

**9th grade chem**

Using the following equation Ca(s) + 2C(s) --> CaC2(s) ^ H = -62.8 kJ CO2(g) --> C(s) + O2(g) ^ H = 393.5 kJ CaCO3(s) + CO2 (g) --> CaC2(s) + 2 1/2O2(g) ^ H = 1538 kJ Determine the heat of the reaction (in kJ) for: Ca(s) + C(s) + 3/2O2(g) --> CaCO3(s)

*Friday, December 17, 2010 by Gabrielle*

**9th grade geography**

What are some negative facts for the Montane Cordillera. Also I am looking for some positive and negative facts for the Prairie Ecozone and Mixed Wood Plain ecozone. Need help please thank you!

*Saturday, November 27, 2010 by peyton*

**9th grade Science**

the longest distance in a field and track event is the 10km run. the record holder for the women's 10km run is Wang Junxia of china. Assuming that she ran a distance of 10.0 km with an average f 5.644 m/s, what was her time?

*Tuesday, November 16, 2010 by Sebas*

**9th grade algebra**

A campsite charges 8$ per day, for the site rental and 4$ for parking. The total campsite charge C( in dollars) is given by C=8d+4 where d is the number of days that the site is rented. complete the table and graph the equation. *Table: D= 0 1 23 C(d)= BLANK How could I fill ...

*Tuesday, November 16, 2010 by Allyson*

**9th grade algebra math hw, help?(:**

The table below shows the cost of renting a bike for a given amount of time, find the rate of change in cost with respect to time. Table: Time: 1.75, 4, 7. Cost( Dollars)4.375, 10, 17.5 Could one of the tutors please explain to me how to this? Thanks :) -Allyson

*Tuesday, November 16, 2010 by Allyson*

**9th grade algrebra**

Question 21 (Essay Worth 8 points) [2.08] The formula for degrees Celsius is: C = 9 over 5 (F − 32), where F stands for degrees Fahrenheit. Part 1: Solve the formula for F. Show all steps. Part 2: Determine how many degrees Fahrenheit 2 degrees Celsius is.

*Monday, November 15, 2010 by Anonymous*

**9th grade**

A bowler rolls a 5 kg bowling ball down a magical frictionless bowling alley. The ball accelerates at an average rate of 2 m/s^2. How much force did the bowler apply to the ball?

*Wednesday, November 3, 2010 by Nick*

**9th grade Deductive Reasoning Math**

Given: Angle A and Angle C are complementary to Angle B. Conclusion: Angle is congruent to Angle C. Determine whether each conclusion is valid based on the true conditional given. If not, write invalid. Explain your reasoning.

*Monday, October 11, 2010 by Ron*

**9th grade**

Name the set(s) of numbers to which 1.68 belongs. a. rational numbers b. natural numbers, whole numbers, integers, rational numbers c. rational numbers, irrational numbers d. none of the above my answer a)rational numbers

*Monday, September 20, 2010 by Ross*

**Mathmatics.. 9th grade**

Your family is driving 188 miles to visit a family member, your father drives 63 miles then stops for a break, a) How many more miles are left in the trip, B) How long will the remainder of the trip take? *It says to label a variable, write an equation and solve for part b. ...

*Wednesday, September 15, 2010 by Not putting it*

**9th grade math**

x to the 2nd power if x = 3/4 how do you find 3/4th to the 2nd power? 3/4th times 3/4th right? so the answer would be 9/16ths.. right?

*Thursday, September 9, 2010 by Melissa*

**9th grade Algebra**

the population of Concord in 1980 was 400 greater than half the population Euclid. The sum of the two populations was 29,600 less than twice the population of Euclid. What was the population of each city in 1980?

*Tuesday, September 7, 2010 by Mike*

**9th grade**

A person standing on Mars would weigh 38% of his earth weight. What is the Mars weight of a person with an earth weight of 55 kilograms?

*Wednesday, August 25, 2010 by Isabelle*

**9th grade**

kyle just started a new job that pays $7 per hour. He had been making $5 per hour at his old job. Kyle worked a total of 54 hours last month and made $388 before deductions. How many hours did he work at his new job?

*Sunday, May 23, 2010 by autumn*

**9th grade**

bryan berg built an 83-story house of cards in 1995. he used 27,000 playing cards to accomplish this feat. at this same rate, about how many cards would it take to build a 100-story house of cards?

*Monday, May 17, 2010 by becca*

**History/9th grade**

I am trying to understand and I hope you can help me. I just want some more explaintion about the great depression. Why do people call it a leveler? I heard some kids over at the table next to me at lunch today. Like I said I just want to know. I am studing about presidents ...

*Tuesday, May 4, 2010 by Nanci*

**9th grade Algebra**

A spinner has 3 three sections, each with different point values and areas. -The 1-point section is 2/3 the area of the spinner. -The 2 point section is 1/4 the area of the spinner. -The 3 point section is 1/12 the area of the spinner. To the nearest tenth of a point, what is ...

*Sunday, April 25, 2010 by Kaila*

**9th grade**

Given Circle D, find the length of segment DB if the measure of segment DE = 25 units and the measure of segment BC = 24 units. Explain your solution.

*Thursday, April 22, 2010 by john*

**9th grade Algebra 1**

Van Goghâ€™s painting Starry Night measures 92 cm long by 73 cm high. You buy a poster that shows an enlargement of the painting. The poster measures 120 cm long by 100 cm high. Is the poster an accurate representation of the painting? (Hint: Is the poster ...

*Tuesday, April 13, 2010 by Mimi<3*

**9th grade**

given that a(-1,8) ,b(2,4) and if the line y=4 is the axis of symmetry of triangle abc find c.show that triangle abc is an isosceles triangle,calculate the area of triangle abc,calculate the perpendicular distance from a to bc

*Tuesday, March 23, 2010 by anum*

**9th grade**

soil dwelling insects are examples of invertabrates. explain why this statement is true and use examples of two soil dwelling insects

*Tuesday, March 23, 2010 by emily*

**9th grade**

it cost $2 per day to place a one-line ad in the classifieds plus a flat service fee. one day cost $3 and four days cost $9. write a linear equation that gives the cost in dollers, y, in terms of the nunber iof days,x. find the cost of a six-day ad.

*Sunday, March 7, 2010 by Amy*

**9th grade SCIENCE**

I have to list 5 different organic compounds; list different types for each; name; structure; properties; and uses. I am a bit confused as to what an organic compound actually is. I know it must contain a carbon, but would vegetables or household foods be considered organic ...

*Friday, February 26, 2010 by 6739*

**classroom instruction**

Search the Internet to locate and review your stateâ€™s educational standards for a grade level and subject that interests you, such as second-grade language arts or fifth-grade science. i need help finding information on the state of wisconsin and 1st grade P.E.

*Thursday, February 18, 2010 by scooby*

**Math - average grade**

Does anyone know how to calculate average point grade? I have the following data: grade D - 2 students - 4,9 percent grade C - 6 students - 14,7 percent grade B - 12 students - 29,2 percent grade A - 21 students - 51,2 percent What is the average grade? This is NOT my homework...

*Wednesday, February 17, 2010 by refy*

**9th Grade Math**

I have one more problem that I need help with. If someone can help me set up the problem I will be able to solve it for my answer. I don't know where to begin with this problem. Thank you for your help it's greatly appreciated. For groups of four or more diners, many ...

*Friday, February 12, 2010 by LANA*

**9th grade Geography**

Which of the following statements about manufacturing in the region is NOT true? a. About 50 percent of the regionâ€™s GDP comes from manufacturing. b. Demand for manufactured goods has increased. c. Workers produce textiles, paper goods, and cement. d. ...

*Tuesday, November 24, 2009 by Nick*

**9th grade**

each question is 10 points each, and i don't get 4 questions. I am in Earth Science and in 9th grade i would appreciate it if some one would help me. THANKS ! Where have earthquakes occurred most frequently during the last one hundred years? 1) in the polar regions 2) in ...

*Monday, November 23, 2009 by Alicia*

**9th grade**

At noon a private plane left Austin for Los Angeles, 2100 km away, flying at 500km/h. One hour later a jet left Los Angeles for Austin at 700 km/h. At what time did they pass each other?

*Monday, November 16, 2009 by Amber*