Solve each equation for m, then find the value of m for each value of n, show your work.

m + 3n = 7; n = - 2, 0, 1

At one farmer's market, bananas cost $0.80 per pound. At another farmer's market, bananas are sold in 5-pound bags for $4.50 per bag. Which explains how to find the better buy? Divide 4.

Use the elimination method to solve the following system of equations. 2x - y + z = - 3 2x + 2y + 3z = 2 3x - 3y - z = - 4

A store has 40 percent off sale on headphones with this discounted price of one pair of headphones is 36 dollars, what is the original price of pair of headphones?

For his long distance phone service, David pays an $8 monthly fee plus 6 cents per minute. Last month, David's long distance bill was $14.18. For how many minutes was David billed?

A school purchases boxes of candy bars each box contains 50 candy bars. each box costs $30. how much does the school have to charge for each candy bar to make a profit of $10 per box?

Change 0.48 into a fraction or mixed number

A pizza has a diameter of 16 inches. What is the best approximation for the circumference of the pizza? Use 3.14 to approximate pi.

What is 3 2/5 - 1 4/5

Which of the following is a product of the rational expression x/x-5•2x/x+4

Jerome deposited $8,000 into a new retirement account with a simple interest rate of 2.8%. If account has earned $3,808 in interest, and there have been no deposits or withdraws, how many years ago did he open the account?