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i have an idea on how to solve but im not sure

yess.. their are multiple choices

what's your idea?

um............ i honestly have no clue. i need a head start please....

x is the number of students, so x = 9. They're asking for r(p(9)).

ok. sooo 9 = 4x − 3. 9+3=12 divide by 4 i get three. but its not one of the choices..... :/

r(x) is just the amount of money total, not for each student

im lose now..

lost

p(x) = 2x + 1
Substitute 9 for x
p(9) = 2(9) + 1

9*2+1 = 18+1 = 19

p(9) = 19.
Now you need to find r(19) so put 19 into r(x)

no, it doesn't.

i did and i got 4

how are you doing the math ? 4(19)=76-3=73

so... the answer 73 :)

yes 73

yep you got it

but this seem tricky. i had a hard time understanding it, but thanks to you two. :)

welcome

no problem

i have an idea to what to do next time seeing this :)