Answer:
C
Step-by-step explanation:
f(x) = -x+7
f(15) = -15+7
f(15) = -8
21.25
because 85$ divided by the 4 tickets is 21.25
I think (jk) (x) means j times k
(jk) (x) = -7x(9 - 2x) //Using Distributive Property.
(jk) (x) = -63x + 14x^2 = 14x^2 - 63
//Hope it helps.
SAS is the right answer!
