Mikayla bought 5 skirts at $x each. Three of the 5 skirts came with a matching top for an additional $9 each. Write and simplify an expression that represents the total cost of her purchase.

In a random sample of 2424 people, the mean commute time to work was 30.730.7 minutes and the standard deviation was 7.17.1 minutes.

Give an example of addition problem in which you would and would not group the addends differently to add

Write 70 20 in lowest terms.

How can you you tell when a pattern shows counting on by tens

A box in the shape of a right rectangular prism has a length of 4.7 feet, a width of 6.2 feet, and a height of 3.1 feet. What is the volume, in cubic feet, of the box. Don't round the answer

Chip has 25 marbles and 16 of them are blue what percent of his marbles are blue

What is a numerical expression for the word phrase? The quotient of 21 and 55

In 1927, Charles Lendbergh had his first solo flight across the Atlantic Ocean. He flew 3,610 miles in 33.5 hours. If he flew about the same number of miles each hour, how many miles did he fly each hour?

What is the gcf of 8x and 40?

12.5 - 4g = - 2g - 3.5