Joaquin buys 3 packs light bulbs. Each pack contains 12 light bulbs. After changing the bulbs in his house, he has 15 bulbs left. How many light bulbs did he use?

A shade of green paint is created by mixing a certain amount yellow paint with a certain amount of blue paint. The ratio of yellow to blue paint is 3:7 based on this ratio, how much yellow paint would be needed to prepare 5 gallons of green paint?

Two people decide to find the height of a tower they position themselves 25 feet apart in line with and on the same side of the tower.

Kim needs to place 32 mystery books and 56 biography books on library shelves. She is to place the maximum number of books on each shelf so that all the shelves have the same number of books. Each shelf will contain only one type of book.

Solve the inequality. Graph the solution. - 6n>54 The solution of the inequality is.

What is the quadratic formula of 4x2+3x+5=0

1. k + 4k - 2k + 7 2. x+x+2+x+4

How do you Simplify 6 (-3 + 2 - 5x)

Can 3 92/100 be simplify

The smith family's car needed 4.2 gallons of gasoline to drive a distance of 150 miles. nbased on this information, determine the average gas mileage their vehicle is capable of as an expression of miles per gallon

Describe how the names of the negative integer powers of 10 correspond to the names of the positive integer powers of 10.