8 cleaners can clean an office in 3 hours, if the block needs to be cleaned in 2 hours, how many cleaners will be needed?

How many solutions are there to the following system equations? Use the linear combination method. 2d+e=8 d-e=4 A. The solution is (4,0) B. There is no solution C. There are an infinite number of solutions D. The solution is (5,-2)

You own 30 shares in a company that has 1,000shares outstanding. During 2017, the company generated $35,000 in profit. They plan on reinvesting $20,000 back into the company and issuing the rest as a dividend.

You and some friends go out for dinner. the bill is $68.50. you want to tip the waiter 18%. What is the total amount you and your friends should pay?

To solve this equation: d/5 + 12 = - 15, which step will be performed last?

How to model 1/2 divided by 4/5, 3/4 divided by 1/2, and 5/3 divided by 1/3?

Kevin wants to buy his mom a $35 necklace if the necklace is 40% off how much will Kevin have to pay

Five years ago, a computer that worked half as fast as a current computer cost twice as much money. The current computer's speed to price ratio is what percent of the older computer's speed to price ratio?

Kevin uses 1 1/3 cups of flour to make one loaf of bread. 2 2/3 cups of flour to make 3 loaves of bread and 4 cups of flour to make three loaves of bread. If Kevin uses the same recipe how many cups of flour will he use to make 4 loaves of bread

Find the elapsed time between the pair of times. from 4:49 p. m to 5:18 a. m

A basketball league wants to order 79 T-shirts for the teams. If there are 9 T-shirts in each package, how many packages of T-shirts should the league order?