Sarah works 5 hours per day on Monday, Tuesday, and Thursday and 7 and a half hours per day on Wednesday and Friday. She does not work on Saturday and Sunday. If she earns 324 dollars per week, what is her average earning rate in dollars per hour?

What is the value of |7 – 2| – |2 – 7| ?

Based on the information given below, how much more profit did Company 1 made from 1999 to 2001 as compared to the profit that Company 2 made in the same period?

The Northridge Quakers have won 20 games and lost 15.What is the ratio of games won to game played?

At a manufacturing plant, 15 percent of the workers belong to the company HMO. If the plant has 300 employees, how many DO NOT belong to the HMO?

A grocer put 130.5 kilograms of cheese into packages with 1.5 kilograms in each package. How many packages of cheese were there?

A rental store charges a fine of 25 percent of the usual full-day rental rate for each hour that an item is late. Ryan rented a rototiller for one day for $\$40$. He returned it 3 hours late. How much was his total bill for the rental and the fine?

Two ships leave the same island harbor at the same time, and after 4.5 hours they are 270 kilometers apart.
Which statement about the direction and average speed of the two ships could be true?

How many dollars were spent for labor?

In his will, Mr. Adams left 25% of his estate to his wife and unevenly divided the balance between his son and his daughter. If the son received $\$36,000$ as his share, what was the total value of the estate?

Which of the following expressions is equivalent to 3x(2+5y)?

The marked price of a shirt is increased by 10% and later decreased by 10%. What is the percentage change in the price?

What are the sides of a rectangle whose area is 60?

The rational numbers 0.78, 0.77, 0.788, 8/7, 8/10 in descending order are:

Three eighths of a garden is dug in 9 hours. How long will it take to dig to five eighths of it?