In Lewis county there are 2277 student athletes competing in spring sports in 2014. that was 110% of the number from 2013 ,which was 90% of the number from the year before. how many student-athletes signed up for a spring sport in 2012?

step-by-step explanation:

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∠cbe and ∠deb are same-side interior angles.

i took the test

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!