Marissa wants to join a video game club. She will be charged a flat fee to join the club and will also pay for each game she purchases. The total amount she can expect to pay. In dollars, can be estimated using the function f(x)=20x+90, where x is the number of the games purchased. What is the inverse of this function

answer: a

step-by-step explanation:

if xy ~ yz therefore xy would be the same length as yz

a

step-by-step explanation:

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