Solve for r.
21 = 42 - 3r

A. r = -8

B. r = -7

C. r = 7

D. r = 8

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

{0,1,2,3,4,5,6,20,21,22,23,24,25} the distribution is considered to be: skewed the right, skewed the left, not skewed?

Which exponential function has an initial value of 2? f(x) = 2(3x) f(x) = 3(2x)