How many ways are there to distribute n distinct balls into r boxes (a box can contain any number of balls, ranging from zero (none) all the way to all n balls) ?

Rani and her friends are raking leaves as a part of a school service project. The regular price of the supplies they need is 60$, but the store manager is giving them a 20% discount. Rani wants to know the sale price of the supplies.

Debbie weighs 96 pounds and Denise weighs 120 pounds. They are seated at opposite ends of a seesaw. Debbie and Denise are 16.5 feet apart, and the seesaw is balanced. How far is Debbie from the fulcrum?

What does the numerator of the fraction 5/6 mean?

A rectangular box is to have a square base and a volume of 80 ft3. the material for the base costs 45¢/ft2, the material for the sides costs 10¢/ft2, and the material for the top costs 28¢/ft2.

2.3x + 1.2 + 2.5x = 9.2 - 4.3x

Which equation has the solution x = 9? Select each correct answer. 3x + 2 = 25 24-2x=13 4 + 5x = 18 x3+7=8 2x-3=15 81x-3=6

Consider the equation 4x2 + 2x = (x + 2) (x - 5) x Match the Property used to create an equation with the same solution set.

4. Polynomial Division Divide. (x3 - 2x - 3) : (x + 3)

Extracting the square root. (4x+7) ^2=60

The range for a list of measurements equals the greatest measurement minus the least measurement. The two lists of measurements, X and Y, combined consist of 30 measurements with a range of 25. What is the range for the measurements in list X?