Liam was reading a long article. He started with two pages on the first day. For five days he doubled the number of pages he had read the day before. Use exponential notation to express the number of pages Liam read on day five.

42.4

step-by-step explanation:

convert to decimal

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!

i agree because i see the other persons thinking is clear