Two Customers took out car loans from a bank. Marcus took out a 5-year loan for $10,000 and paid 4.7% annual simple interest.

Gianna took out a 6-year loan for $10,000 and paid 4.5% annual simple interest.

What is the difference between the amounts of interest Marcus and Gianna paid for their car loans?
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step-by-step explanation:

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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

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mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!