Irwin rode his bicycle from one end of a trail to another and back at a speed of 20 miles per hour. If the trail is 4 miles long, for how many hours was Irwin riding?

a. 0.2 hoursB. 0.4 hoursC. 2.5 hoursD. 5.0 hours

Josh had $150 to spend on 75 balloons for the birthday party. After buying the balloons, Josh had $8.25 left. How much did each balloon cost? Write an algebraic equation to show the relationship between the knowns and the unknowns.

What's 0.003 1/10 of

A pair of shoes costs $29.99 and the state sales tax is 5%. Use the formula C = p + rp to find the total cost of the shoes, where C is the total cost, p is the price, and r is the sales tax rate.

1080 labels on 90 sheets or 2250 labels on 150 sheets? which is the greater rate?

Using the addition and 3) - 7y - 2 = - 8 + 9y

Keela can read 2/7 of a book in 3/4 of an hour. How long will it take her to read one full book

Least common denominator of 3/5 2/7

With a stratified random sample, a population is broken up into different subgroups and then simple random samples are conducted within each of these subgroups. A. True B. False

What is 17.565x10 to the power of 2

A set e consists of all even numbers. use set-builder notation to define e.