On a test of 80 problems, Bill got 75% of the problems correct.
How many did he get correct?

An animal shelter has 21 puppies. if the puppies are 28% of the total dog and cat population , how many dogs and cats are in the animal shelter

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 20 = x a. 5, 4 b. -5, -4 c. -5, 4 d. 5, -4

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).