Please show me the steps of to do this
DON"T GIVE ME THE ANSWER
ASAP

B

Step-by-step explanation:

The number is 8 times greater than

thus,

multiply both sides by

we get

if we take a = 2.5 and b = 3.1 we get 2.5/3.1 = 0.8

then B is the answer

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!

12

step-by-step explanation: