Marisol rode her bicycle each day for five days. estimate how far she biked in all. round each number to the nearest whole number

Step-by-step explanation:

Since you haven't shared how many miles Marisol rode her bike each day, I will assume that the average distance she biked was d.  In five days, she biked 5d miles.

For a more specific answer, please share all of the info given in the problem.

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!