What is the solution 21=42-3r

3. Shawna's Bikes rents bikes for $19 plus $4 per hour. Lea paid $39 to rent a bike. For how many hours did she rent the bike?

Solve the problem using the guess-and-check method. Each rack in a clothing store can hold 8 shirts. How many racks does the store need to display 96 shirts?

Benjamin invests $400 in a savings account that earns 5/%5% interest each year. Which expression does not give the correct balance in the account after 33 years?

What is 1/4 of 12 bottles of water

A sweater that originally cost $40 is on sale for 10 percent off. what is the amount of the discount?

The area of a certain desert (Desert 1) is nine times the area of another desert (Desert 2). If the sum of their areas is 40,000,000 square miles, find the area of each desert.

Find the range of the relation: { (-9, 7), (-1, 0), (1, 5), (-5, - 3) }

Factor the expression w^2-7w-8

Explain how to find the range

The following table shows the data collected from 2 random samples of 100 students each from an after-school club regarding their favorite outdoor activity: Sample Canoeing Bike Racing Reading Total 1 40 35 25 100 2 45 40 15 100 Which of the