Mr. redding sells vehicles to 20% of the people that come to the sales lot. if 65 people came to the lot last month, how many vehicles did he sell?

He sells vehicles to 20% of people who comes to sales lot.

65 people came to the sales lot.

So he sold vehicles to 20/100 × 65 people = 13 people

Assuming that each person buys 1 vehicle; he sold 13 vehicles.

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!