Choose the justification for the step below. 21+7x= 14
7x= -7
a) additive property of equality
b) multiplication/division property of equality
c) distribution
d) none of these

Marya wants to factor the polynomial 36x^3 -22x^2 - 144x. which term can she add to the polynomial that would not change its grestest common factor? check all that apply

The ratio of wooden bats to metal bats in the baseball coach’s bag is 2 to 1. if there are 20 wooden bats, how many metal bats are in the bag?

Compare the following pair of numbers a and b in three ways. a. find the ratio of a to b. b. find the ratio of b to a. c. complete the sentence: a is percent of b. a=120 and b=340 a. the ratio of a to b is . b. the ratio of b to a is . c. a is nothing percent of b.