18. sam collects baseball cards. he currently has 112 cards in his collection. he plans
to buy 5 new cards every month. write a verbal model and algebraic expression to
represent the total number of cards sam has after m months. identify the units for
the expression.

jwjwkwkwkkkdjebd b jdjejdndj he jenej

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!

he kicked it up? is this the answer ?

step-by-step explanation:

b segment jm is correct i think