Sam had two hundred twenty one dollars to spend on seven books. after buying them he had eighteens dollars. how much did each book cost"

You deposited 1700 dollars in a savings account that earns a simple interest rate of 3% per year. how many years do you need to keep the money in the account to earn $306 in interest

The cost in dollars of a Valentine's Dance is 45 + 3s where s is the number of students attending. What is the cost for 78 students

Solve the following equation 3 (2x+7) = 9

How can you make 2 into 3 without adding one? For example (exponents and dividing)

What was Einsteins theory

An object that weighs 1 pound on earth weighs only 0.17 pounds on the moon. Zach's dog weighs 17 1/2 pounds on earth. How much more does his dog weigh on earth than on the moon?

GCF using monomials 63p and 84

Put 1.64 in a percentage

Find the percent of change from 10 yards to 13 yards

What is the domain of the function y=2sqrtx-6?