The cost of an Internet service subscription varies directly with the length of the subscription. A 3 month subscription costs $32.85. How much does a 12 month subscription cost?

the answer is 131.4

Step-by-step explanation:

32.85/3= 10.95

10.95×12= 131.4

answer:

what is your question that you ask

step-by-step explanation:

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