Pablo reads 32 chapters of a book in 8 hours.
What is his rate in chapters per hour?

4 per hour

Step-by-step explanation:

32➗8=4

4 chapters per hour

Step-by-step

32/8=4 and we know that because

1h per 4

2h per 8

3h per 12

4h per 16

5h per 20

6h per 24

7h per 28

8h per 32

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!

step-by-step explanation: