Two friends have come twenty-dollar bills in their pockets and each has less than five hundred dollars. Each of them has entered a contest in which the prize is $200.

The sum of a number and 5 is tripled then lessened by 15 to get 9

Two different squares that can be made using the number 9

What are the benefits of erosion?

A student has passed 70 percent of the 20 quizzes he has written so far successfully. If this student takes 60 quizzes during the school year, and passes 85 percent of the remaining quizzes successfully, what will his average score be?

Julio is playing a card game. The probability that an ace card is drawn is 0.08. The probability that a black card is drawn is 0.5. The probability that a black ace card is drawn is 0.04.

Add or subtract. (4x2 - 2x - 1) - (-3x + 2)

Are 15:35 and 25:45 equivalent

A rectangular prism has a base with an area of 200 cm. The volume of the prism is 3,000 cm. What id the height of the prism?

A 2 pound box of salt sells for $.89 and a 5 pound box sells for 2.09. What is the linear equation for this?

Solve equation a+6a-9=30