Subtract. Write the answer as a mixed number.

Find the average of 99, 107, 87, 103, and 84.

Add. -16 + (-64) + 64 + (-52)

Multiply.

Sales of frozen pizza for a club fundraiser increased from 500 one year to 705 the next year. What was the percent increase?

Add. 502.9513 + 8.987 + 18.64 + 8149.937

Divide.

Add. Simplify the answer.

John Lee's savings account has a balance of $1,373. After 15 months, what will the amount of interest be at 5.7% per year?

Solve for x.

Multiply.

Divide. Write the answer either as a whole number or as a mixed number.

Solve for r. 8r + 7 = 39

Subtract. -13 - (-12)

Simplify.

Divide:

Subtract. 10.7381 - 0.1879

Evaluate

**x + y**for**x = 3**and**y = -8**. Simplify.

An employee was paid $65,552 during the first half of last year. During the second half he was paid $97,450. How much more was his income during the second half?