Last year a printing company had total sales of $37 500. the total of its variable costs was $ 15 000, and fixed costs were $18 000

13.46

step-by-step explanation:

16.80 x .20 = 13.46

hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb