What is the y value of y=2x-3 and y=3x-7

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1387 grams and standard deviation 161 grams. what is the probability that a randomly selected broiler weighs more than 1,425 grams?