Nathan buys coffee and hot chocolate for his co-workers. each cup of coffee costs $1.65 and each cup of hot chocolate costs $1.05. if he pays a total of $9.75 for 7 cups, how many of each does he buy?

not solvable

step-by-step explanation:

we need more information, or at least an

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

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