Anew toy hits the local store. sales (in hundreds) increase at a
steady rate for several months, then decrease at about the same
rate. this can be modeled by the function
s(m) = -0.625 m - 81 +5
in what month(s) were 400 toys sold?
7th and 10th
4th and 12th
5th
5th and 11th

y=mx+b

step-by-step explanation:

m slope

b y-intercept

think about it deeply and passionately about this property

i am sorry

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

it is 10.6 according to my calculations