Monday

February 27, 2017
**M.L.T college,saharsa**

√x+y=11 x+√y=7

*Thursday, October 8, 2015 by Vimal Shukshma Raj*

**College algebra**

Suppose that a sales person observes that if an item is priced at $3 per item then 11 items are sold. If 9 items are sold for $5 per item then find a liner equation to model the number y of items sold for x dollars per item. Find the slope intercept form of the equation of the...

*Thursday, October 8, 2015 by Raven*

**college algebra**

fish population: the fish population in a certain lake rises and falls according to the formula F=1000(30+17t-t^2) , Here F is the number of fish at time t, where t is measured in years since January 1, 2002, when the fish population was first estimated. a) On what date will ...

*Thursday, October 8, 2015 by sheen*

**Quick english check**

Use adapt, alleviate, anecdote, attributed, diminutive, distinct, endowed, enhance, facilitating, incantation, irony, linguistic, mitigates, ponderous, restitution, and resuscitate to put in the correct sentence. Please correct me if I’m wrong! On July19, 2015, the Houston ...

*Wednesday, October 7, 2015 by Anonyomous*

**english**

Q5. Repair Fragments. ( 2.5 ) i. Wanting to participate in the full college experience. ans. In the full college experience,wanting to participate. ii. The announcement of the return of intercollegiate athletics. ans. (I am unable to answer this) iii. For example, blueberry ...

*Tuesday, October 6, 2015 by javeria*

**Himma International College Minna**

Chemistry: 30cm^3 of a mixture of methane and ethyne require 70cm^3 of oxygen for complete combustion. Calculate the composition of the mixture

*Tuesday, October 6, 2015 by Khadeejah*

**college algebra math help**

Laura owns and operates Aunt Linda's Pecan Pies. She has learned that her profits, P(x), from the sale of x cases of pies, are given by P(x) = -x^2 + 14x + 51. a. The company will "break-even" when the profit is zero. How many cases of pies should Laura sell in order to break-...

*Saturday, October 3, 2015 by Anonymous*

**Math**

The student to faculty ratio at a small college is 17:3. The total of students to faculty is 740. How many faculty members are there at the college? How many students?

*Friday, October 2, 2015 by Anaalicia*

**Physics - Inverted pendulum**

Hello. My son is in pre-school, but he's already starting his Undergraduate for college. Never too early to start, right? So he got this problem for homework. Can anyone help? He supposedly needed "nap time" and slept through the entire lecture the professor was giving, so he ...

*Friday, October 2, 2015 by John Cena*

**College Algebra**

find all zeros of the function 6x^3+43x^2+6x+7

*Friday, October 2, 2015 by Anonymous*

**statistics**

The Economic Policy Institute periodically issues reports on wages of entry level workers. The Institute reported that entry level wages for male college graduates were $21.68 per hour and for female college graduates were $18.80 per hour in 2011 (Economic Policy Institute ...

*Thursday, October 1, 2015 by gabby*

**math**

There are 80 questions on a college entrance examination. Two points are awarded for each correct answer, and one-half point is deducted for each incorrect answer. How many questions does Tami need to answer correctly in order to score at least 100 on the test? Assume that ...

*Wednesday, September 30, 2015 by K. Smith*

**college algebra**

Kiran drove from City A to City B, a distance of 242 mi. She increased her speed by 10 mi/h for the 351-mi trip from City B to City C. If the total trip took 12 h, what was her speed from City A to City B?

*Wednesday, September 30, 2015 by Maggie*

**College english**

The phrase that signals a contrast context is A. Such as. B.on the other hand C.for instance D.to illustrate I think it is D

*Wednesday, September 30, 2015 by jeny*

**segi college**

Do you think that southwest actions are consistent with its mission?explain ways in which the firms action are consistent or inconsistent with its mission

*Tuesday, September 29, 2015 by alex*

**College Algebra**

simplify expression (no negative exponents) -2^-3(xy^3)^-2/x^-1y^-3 I got 1/-8x^2y^2

*Tuesday, September 29, 2015 by Tim*

**College Algebra**

factor completely: 16x^2 + 16x-21 I got not factorable...

*Tuesday, September 29, 2015 by Tim*

**College algebra**

A seamstress is designing a triangular flag so that the length of the base of the triangle, in inches, is 7 less than twice the height h. Express the area of the flag as a function of the height. I have figured out the area, but i'm not sure what the question means when it ...

*Tuesday, September 29, 2015 by Amber*

**College Algebra**

1 - 1 = 1 ______________________________________ 4x-12 2x-6 x^2-3x Solve the equation (its subtracting the first two fractions and equalling the last fraction)

*Tuesday, September 29, 2015 by Tim*

**College Algebra**

Use quadratic formula to solve: 5x^2-10x+6=0

*Tuesday, September 29, 2015 by Tim*

**College algebra**

A seamstress is designing a triangular flag so that the length of the base of the triangle, in inches, is 7 less than twice the height h. Express the area of the flag as a function of the height.

*Monday, September 28, 2015 by quel*

**College Algebra**

Consider two circles. A smaller one and a larger one. If the larger one has a radius that is 8 ft longer than the smaller one, and if the ratio of the circumference is 3:1, then what are the radii of the two circles?

*Monday, September 28, 2015 by Tim*

**College Algebra**

write in standard form a+bi: (2+3i)^3

*Monday, September 28, 2015 by Tim*

**History**

1) Which of the statements describes someone who would have been most likely to move to New Mexico after World War II? A)a Pueblo woman who lives near Santa Fe B)a college student in nearby Colorado C)a pilot who trained at Kirtland Air Force Base during World War II D)a ...

*Monday, September 28, 2015 by Appreciated Help*

**College algebra**

Curt can be paid in one of two ways for the sales he generates: Plan A: 900$ per month plus 10% sales commission. Plan B: $1200 per month plus 15% commission on sales above $8,000. Assuming he always exceeds $8,000 in sales, for what amount interval of $ sales is Plan B better?

*Sunday, September 27, 2015 by quel*

**college algebra**

Marissa is designing a rectangular poster whose width is 2/3 of its height. Its perimeter will be 100 inches. what are the dimensions of the poster?

*Sunday, September 27, 2015 by quel*

**college algebra**

A freight rain leaves a station and travels north at a constant rate of 60 mph. One hour later a passenger train leaves the same station traveling north on a parallel track at 80 mph. How long will it take for the passenger train to draw even with the freight train?

*Sunday, September 27, 2015 by quel*

**St Teresas College**

Subject:Chemistry What is the difference between seawater and pure water in terms of osmotic pressure and vapour pressure?

*Saturday, September 26, 2015 by Sulu*

**St Teresas College**

What would be the difference between seawater and pure water in terms of osmotic pressure and vapour pressure?

*Saturday, September 26, 2015 by Anonymous*

**Kabe college**

What is the resultant of two equal forces of magnitude f,acting at right angles to each other

*Friday, September 25, 2015 by Emmanuella*

**College Algebra**

Find the time required for an investment of 5000 dollars to grow to 7900 dollars at an interest rate of 7.5% per year, compounded quarterly

*Thursday, September 24, 2015 by Marina*

**College Algebra**

A wooden artifact from an ancient tomb contains 45% of the carbon-14 that is present in living trees. How long ago, to the nearest year, was the artifact made

*Thursday, September 24, 2015 by Marina*

**college chemistry**

From your mass of MgNH4PO4.6H2O collected, calculate your value a) for the mass of "P2O5" in the initial mass of fertilizer analyzed b) the % "P2O5" in the fertilizer. Compare this with the manufacturer's specification. Just want to know how i would go about this question, ...

*Wednesday, September 23, 2015 by ali*

**college chemistry**

From your mass of MgNH4PO4.6H2O collected, calculate your value a) for the mass of "P2O5" in the initial mass of fertilizer analyzed b) the % "P2O5" in the fertilizer. Compare this with the manufacturer's specification. Just want to know how i would go about this question, ...

*Wednesday, September 23, 2015 by ali*

**green valley college**

automotive airbags inflate when sodium aside NaN3 Rapidly decomposes to its consistent elements. the equation for the chemical reaction is NaN3=Na+In2 The gaseous N2SO generated inflates the airbag. How many moles of NaN3 would have to decompose in order to generate 253 ...

*Wednesday, September 23, 2015 by rosvel*

**green valley college**

the principal constituents of natural gas is methane which burns in air according to the reaction CH4+O2=CO2+H2O How many grams of CO2 is produced when you have 50g of both CH4 and O2 what is the limiting reactant?

*Wednesday, September 23, 2015 by rosvel*

**L.A**

Which of the following expresses a main idea from Always to Remember? a.Maya Ying Lin was a talented and smart college student who became a designer. b.Maya Ying Lins family life, travel experiences, and education provided her a background necessary for a winning design. c....

*Tuesday, September 22, 2015 by Amber*

**statistics**

Pharmaceutical companies advertise for the birth control pill an annual efficacy of 98.6% in preventing pregnancy. However, under typical use the real efficacy is only about 95%. That is, 5% of women taking the pill for a year will experience an unplanned pregnancy that year. ...

*Monday, September 21, 2015 by angelica*

**probability**

The National Center for Educational Statistics reported that in 2009 the ACT college placement and admission examination were normally distributed and had a mean of 21.1 and standard deviation of 5.1. A college requires applicants to have an ACT score in the top 20% of all ...

*Monday, September 21, 2015 by matt*

**College Physics**

A snowball off a roof that slopes downward at an angle of 40degrees. The edge of the roof is 14 m above the ground and the snowball has a speed of 8 m/s as it rolls off the edge of the roof. If a 1.8 m tall man is standing 4 m from the top of the edge of the roof, will he be ...

*Monday, September 21, 2015 by Bryan*

**College Algebra**

Randall is 105 years old. Colleen is 5 years old. How many years until Randall's age is 5 times Colleen's age?

*Sunday, September 20, 2015 by Jai*

**physics**

In college softball, the distance from the pitcher's mound to the batter is 43 feet. If the ball leaves the bat at 105 mph, how much time elapses between the hit and the ball reaching the pitcher? I figured out how many ft there would be in a second, but I'm not so sure where ...

*Friday, September 18, 2015 by Laura*

**college algebra**

The total yearly food bill for a family of four is $9395.59. To the nearest cent, what is the mean weekly food bill?

*Friday, September 18, 2015 by Jacqueline*

**U.S history**

Was Slavery the basis of freedom in colonial America? This what I hvae written I feel like its to much and would like to shorten it and make it sound more college level plz help. In colonial America slavery was the basis of freedom. In areas such as Europe and foreign ...

*Wednesday, September 16, 2015 by rachel*

**Writing**

Please check this thesis statement. Thesis: While some college students want to be completely independent by leaving home, it is worthy to note that dependence is necessary at times.

*Wednesday, September 16, 2015 by Anonymous*

**college algebra**

195, 176, 215, 200, 189, 232, 201 mean= median= mode= 25% percentile= 75% percentile= maximum= minimum= range=

*Wednesday, September 16, 2015 by tim*

**Writing**

I concede that my thesis is vague. This is still vague to me. What are these "essential life skills"? If you list some (and make them specific), I'll help you work them in. • Re-write: Through their difficult times in college, students will be armed with perseverance and ...

*Wednesday, September 16, 2015 by Anonymous*

**college algebra**

Country CO2 Emissions (tons of carbon dioxide) 2012 population ￼ Emissions per Capita ￼ China 8,782,000,000 1,359,750,000 ￼ ￼ ￼ United States 5,144,000,000 316,597,000 ￼ ￼ India 2,185,000,000 1,233,460,000 ￼ Russia &#...

*Wednesday, September 16, 2015 by tim*

**college algebra**

In Japan, there were 94,848 deaths attributed to heart disease and the population of Japan is about 128 million. If the United States were able to reduce its number of deaths to be proportional to that of Japan, about how many deaths due to heart disease would be expected? (...

*Wednesday, September 16, 2015 by tim*

**Writing-Writeacher**

This is still vague to me. What are these "essential life skills"? If you list some (and make them specific), I'll help you work them in. • Re-write: Through their difficult times in college, students will be armed with perseverance and determination which allow them to cope...

*Wednesday, September 16, 2015 by Anonymous*

**Writing**

This is still vague to me. What are these "essential life skills"? If you list some (and make them specific), I'll help you work them in. • Re-write: Through their difficult times in college, students will be armed with perseverance and determination which allow them to cope...

*Wednesday, September 16, 2015 by Anonymous*

**Writing**

Please check my rewrites (the ones with a black dot/bullet). Thank you! a. The importance of your family. Thesis: The success of a child depends on the support of his or her family. * I think this is debatable because the other side could argue that the success of a child ...

*Wednesday, September 16, 2015 by Anonymous*

**college algebra**

Are total emissions or per-capita emissions a better gauge when comparing the CO2 emissions of various countries? Why?

*Wednesday, September 16, 2015 by tim*

**college algebra**

In Japan, there were 94,848 deaths attributed to heart disease and the population of Japan is about 128 million. If the United States were able to reduce its number of deaths to be proportional to that of Japan, about how many deaths due to heart disease would be expected? (...

*Wednesday, September 16, 2015 by tim*

**college algebra**

According to the CDC there were 597,689 deaths in the US in 2010 attributed to heart disease. Given that the US population in 2010 was close to 308 million, what was the death rate per capita for heart disease in the US for 2010? (round to five decimal places)

*Wednesday, September 16, 2015 by tim*

**Chemistry college**

You are given a recipe for a buffer that contains 5% (w/v) MgSO4.7H2O. However, you only have MgSO4 anhydrous available to you. How much MgSO4 anhydrous do you need to make 0.5L of the buffer with the same molar concentration as in the recipe? Show your calculations

*Wednesday, September 16, 2015 by Anna*

**college algebra**

The Johnsons plan to put down all-weather carpeting on the porch. The length of the porch is 2 feet longer than twice the width, and the perimeter is 64 feet. Find the dimensions of the porch.

*Wednesday, September 16, 2015 by Cornelius*

**college algebra**

In the state of Indiana, 192,031 people claim not to speak English very well. If this is 3.2% of the population of Indiana residents aged 5 years and older, estimate the population of Indiana residents aged 5 years and older. (round to the nearest person)

*Tuesday, September 15, 2015 by tim*

**college algebre**

There are approximately 314 million people in the U.S. If the world population is 7.1 billion people, what percent of the world population is in the U.S.? (round to one decimal place)

*Tuesday, September 15, 2015 by tim*

**Writing**

Please check my rewrites (the ones with a black dot/bullet). Thank you! a. The importance of your family. Thesis: The success of a child depends on the support of his or her family. * I think this is debatable because the other side could argue that the success of a child ...

*Tuesday, September 15, 2015 by Anonymous*

**Writing**

Please check my rewrites (the ones with a black dot/bullet). Thank you! a. The importance of your family. Thesis: The success of a child depends on the support of his or her family. * I think this is debatable because the other side could argue that the success of a child ...

*Tuesday, September 15, 2015 by Anonymous*

**Writing**

Formulate a workable thesis statement for each of the following general subjects and topics. Please give me some feedbacks on my thesis statements. Thank you! a. The importance of your family. Thesis: The success of a child depends on the support of his or her family. * I ...

*Tuesday, September 15, 2015 by Anonymous*

**Social Studies**

Please check my answers :) 1. Which of the following means producing just enough to meet the families' needs, with little left to sell or exchange? a. harvesting b. substance farming**** c. cash crop d. tidewater farming 2. The Proclamation of 1763 called for a. settlers to ...

*Tuesday, September 15, 2015 by Alexis*

**Writing**

Formulate a workable thesis statement for each of the following general subjects and topics. a. The importance of your family. Thesis: The success of a child depends on the support of his or her family. b. The difficulty of adjusting to college. Thesis: Despite the difficulty ...

*Tuesday, September 15, 2015 by Anonymous*

**College Chemistry**

When one mole of C6H6 is burned, 3.27 MJ of heat is produced. When the heat from burning 7.59 g of C6H6 is added to 5.69 kg of water at 21.0°C, what is the final temperature of the water?

*Tuesday, September 15, 2015 by Angel*

**College Chemistry**

A 43.70 g sample of a substance is initially at 24.7 °C. After absorbing 1757 J of heat, the temperature of the substance is 120.5 °C. What is the specific heat (c) of the substance?

*Tuesday, September 15, 2015 by Angel*

**College Chemistry**

The specific heat of a certain type of cooking oil is 1.75 cal/(g·°C). How much heat energy is needed to raise the temperature of 2.83 kg of this oil from 23 °C to 191 °C?

*Tuesday, September 15, 2015 by Shannon*

**College Chemistry**

When one mole of C6H6 is burned, 3.27 MJ of heat is produced. When the heat from burning 5.43 g of C6H6 is added to 5.69 kg of water at 21.0°C, what is the final temperature of the water?

*Tuesday, September 15, 2015 by Shannon*

**satistics**

Among a random sample of 500 college students, the mean number of hours worked per week at non-college related jobs is 14.6. This mean lies 0.4 standard deviations below the mean of the sampling distribution. If a second sample of 500 students is selected, what is the ...

*Tuesday, September 15, 2015 by Lissa*

**math**

A researcher wishes to estimate the proportion of college students who cheat on exams. A poll of 560 college students showed that 27% of them had, or intended to, cheat on examinations. Find the 95% confidence interval. A. 0.2323 to 0.3075 B. 0.2325 to 0.3075 C. 0.2325 to 0....

*Tuesday, September 15, 2015 by Jenny K*

**College Algebra**

An executive invests $26,000, some at 8% and some at 6% annual interest. If he receives an annual return of $1,800, how much is invested at each rate?

*Tuesday, September 15, 2015 by Kendra*

**College Physics**

At a firing range, a target is placed 300 m from where someone is firing a rifle. The muzzle speed of this rifle is 700 m/s. If the rifle is aimed directly at the center of the target, by how far will the target miss? At what angle would the rifle need to be aimed at to hit ...

*Monday, September 14, 2015 by Tom*

**College english**

some hallucinogens can be found in plants. mescaline comes from a cactus called peyote. And certain mushroom, also known as magic mushrooms, are hallucinogens.But many hallucinogens are chemicals that don't occur in nature. some examples are: LSD,MDA, MDMA, PCP Topic Pattern ...

*Sunday, September 13, 2015 by peral*

**college physics**

You step onto a hot beach with your bare feet. A nerve impulse, generated in your foot, travels through your nervous system at an average speed of 124 m/s. How much time does it take for the impulse, which travels a distance of 1.60 m, to reach your brain?

*Sunday, September 13, 2015 by jess*

**College Algebra**

how do you find the sloution of each of the following rational euations ?? ▶ 4 / m+2 - 2 / m-3 = 6 /(m+2)(m-3) ▶ 3x-2 / 5x+5 = 4x-3 / 6x+7

*Sunday, September 13, 2015 by slime*

**college algebra**

A car salesperson's annual income depends on the amount of his sales. His annual income is a salary of $11500 plus 12% of his annual sales. Write a linear equation for his annual income for sales of x dollars. ( I = mx + b ). 11500=I i Don't know what is mx+b is.

*Saturday, September 12, 2015 by JTR*

**hoerner college**

A man sells a tv set for rs 3,450 and makes a profit 15% he sells a second tv set at loss 10%,find the cp ?

*Thursday, September 10, 2015 by shishu singh*

**college algeb**

help :) 1.) cube root of 3x^2 multiplied to square root of 2x? 2.) square root of 3+2sqrt2 multiplied to sqrt of 3 - 2sqrt2 3.) sixth root of 12 divided by (sqrt 3 multiplied to cube root of 2) 4.) 4/cuberoot of 16

*Wednesday, September 9, 2015 by alaine*

**College english**

Don't want to forget what you learned today? Sleep on it. Naps, ideally 90 minutes long, help you register the happenings and how-to's learned during the day. Then when you catch your z's at night, your brain creates memories of the day's events. But overload your brain with ...

*Tuesday, September 8, 2015 by lki*

**college algebra**

Barbara has $4.40 worth of change in nickels and dimes. If she has 2 times as many nickels as dimes, how many of each type of coin does she have?

*Monday, September 7, 2015 by lun*

**stats 200**

. At a college, 72% of courses have final exams and 46% of courses require research papers. Suppose that 32% of courses have a research paper and a final exam. Let F be the event that a course has a final exam. Let R be the event that a course requires a research paper. a. ...

*Sunday, September 6, 2015 by edi*

**sita college**

It took 20 seconds for a certain volume of oxygen to effuse through an orifice(small opening) at 298K. How long will it take the same volume of each of the following gases to effuse through the same orifice at the same temperature?. The gases are hydrogen, helium, and chlorine...

*Sunday, September 6, 2015 by aweda*

**English**

1. What fact best explains why it is significant that Angelou's narrative is set in 1940? A. In 1940 the united states was not yet involved in world war 2 B. In 1940 segregation of blacks and whites was still the norm *** C. In 1940 most high school students did not go on to ...

*Friday, September 4, 2015 by Abby*

**st stevens college baja**

A light inextensible string passes over a smooth light pulley and masses of 3 and 7 kg are attached to its ends.the masses are released from rest when 7kg mass is 1m above a horizontal table. 1) show that 7kg mass hits the table about 5/9 seconds if released.

*Tuesday, September 1, 2015 by matovu Emma*

**English**

1. He is an old college buddy of mine. 2. He is an old university buddy of mine. ================ Are both OK? Which one is commonly used? Does 'buddy' mean 'friend'? Can we substitute 'friend' for 'buddy'?

*Tuesday, September 1, 2015 by rfvv*

**lbcc**

Gymnast Clothing manufactures expensive soccer cleats for sale to college bookstores in runs of up to 500. Its cost (in dollars) for a run of x pairs of cleats is C(x) = 3000 + 6x + 0.1x2 (0 ≤ x ≤ 500). Gymnast Clothing sells the cleats at $130 per pair. Find the ...

*Monday, August 31, 2015 by jasmin*

**Allan Hancock College**

A rectangular lot whose perimeter is 260 ft is fenced along three sides. An expensive fencing along the lot's length cost $ 36 per foot. An inexpensive fencing along the two side widths costs only $ 6 per foot. The total cost of the fencing along the three sides comes ...

*Saturday, August 29, 2015 by Kathie*

**college math**

1. If a person jogs at a rate of mi/hr for hr in a week, how many calories will the person burn?

*Tuesday, August 25, 2015 by sara*

**College Physics**

A cyclist is at rest at a traffic light. When the light turns green, he begins accelerating at 2.56 m/s2. How far does he go after the light turns green until he reaches a cruising speed of 10.88 m/s?

*Tuesday, August 25, 2015 by Ashley*

**Bytco College**

Calculate the volume of O2 evolved &mass of KCl formed by decomposition of 30.8 gm KClO3

*Tuesday, August 25, 2015 by shweta*

**college Algebra**

Factoring 2a(a+3b) - 5(a+3b)

*Thursday, August 20, 2015 by Dee365*

**college history**

What were the company towns about?

*Monday, August 17, 2015 by jackie*

**English**

1. United Nations, 310, 314, 362 charter of, 311 Declaration of, 309 United States, 225, 238, 275, 289 in Big Four, 322, 325-7 in League of Nations, 299 Lend-Lease policy of, 307 Neutrality of, 305 as United Nations sponsor, 313 Universal Declaration of Human Rights, 316 “...

*Sunday, August 16, 2015 by BARNETTA*

**Reading**

1. United Nations, 310, 314, 362 charter of, 311 Declaration of, 309 United States, 225, 238, 275, 289 in Big Four, 322, 325-7 in League of Nations, 299 Lend-Lease policy of, 307 Neutrality of, 305 as United Nations sponsor, 313 Universal Declaration of Human Rights, 316 “...

*Sunday, August 16, 2015 by BARNETTA*

**college algebra**

Solve the following exponential equation by expressing each side as a power of the same base and then equating exponents. 31-x = 1/27

*Friday, August 14, 2015 by yan*

**computer programming**

Boardman College maintains two files—one for Sociology majors and another for Anthropology majors. Each file contains students' ID numbers, last names, first names, and grade point averages. Each file is in student ID number order. The college is merging the two departments ...

*Saturday, August 8, 2015 by John*

**Opra college**

Chemistry work........the volume of oxygen measured at stp will br produced on heating 24.5grams of potassium trioxochlorate(v)

*Thursday, August 6, 2015 by Pelumi*

**college. physics and chemistry and mathematics**

An element crystalline in face centred cubic lattice. CCalculate the length of the side of the unit cell if the radius of atom is200pm

*Wednesday, August 5, 2015 by nerswn narzary*

**college chemistry**

The air in a typical La Crosse basement contains 53 atoms of 222Rn per liter. A. If the basement has 950 ft^2 of floor space and is 8.0 feet tall, how many 222Rn atoms are there in the whole basement? B. Assuming a total pressure of 1.00 atm, what is the partial pressure of ...

*Tuesday, August 4, 2015 by Sara*

**college chemistry**

A piece of wood is discovered in the Amazon with a 14C/12C that is 64.3% that of living organisms. How old is it? I have no clue how to do this please help.

*Tuesday, August 4, 2015 by Sam*