Jamie rents a movie for a flat fee of $2.50 plus an additional $0.75 for each night she keeps the movie. Choose the cost function that represents this scenario if x equals the number of nights Jamie has the movie.

C (x)= 2.50 + 0.75x

Step-by-step explanation: I took the test on FLVS

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18