Fifty students were eating lunch in the school cafeteria. the ratio of boys to girls was 25: 25. mrs. white asked kym to explain what that ratio meant. kym said it meant that 25% of the students in the cafeteria were boys. explain why kym is incorrect.

it is c, trust i got your back lol

step-by-step explanation:

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!