The ratio of boys to girls in history class is 4 to 5. How many girls are in class if there are 12 boys in the class.

James buys sand to fill a sandbox that is shaped like a rectangular prism. The sandbox has a square base with a side length of 0.5 yards and a height of 0.4 yards. The store sells sand for $34 per cubic yard. How much does James spend on sand?

What is the value of k in the equation 10k-7=7k-15

If f (x) = x+4/x, g (x) = x-2 and h (x) = 4x-1 what is f (h (g (x))) ?

Which subject did the students decline the most from 2000 to 2003

Kathi starts with number. she adds 3 to her number then doubles the resut. finally, she sustracts 7. if she ended with 9, what number did she start with?

Solve - 17 + n/5 = 33

Show three different ways to compose a sum if 1. Use two fractions that have 8 as a denominator. Explain your answer.

Find the number such that when it is added to 5 and the sum is divided by 3 the result is the same as one twelve in divided by x

You are dealt a hand of three cards, one at a time. Find the probability of each of the following. a) The first heart you get is the third card dealt. b) Your cards are all diamonds. c) You get no aces. d) You have at least one heart.

Kendall recently received a job offer which required him to move his house full of furniture across the country from Columbia, South Carolina, to Riverside, California.