Tina purchased a new bike for $850 on a payment plan. Four months after purchasing the bike, her balance was $630. Six months after purchasing the bike, her balance was $520. Find an equation that models the balance y after t months. How many months will it take her to pay off the loan?

3/20

step-by-step explanation:

well, there are 20 outcomes, and 3 of them you want. so, 3/20

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

for future students the answer is b

hope i

-lavira: )