Question

I need help on how much. Will he spend on the cell phone 3 in years

Answer 1

Answer:
$1230

Step-by-step explanation:
First of all, your initial equation is wrong. It should be:
cost = 30m + 150

To find how much 3 years will cost you have to first find how many months are in 3 years:
12 • 3 = 36
Then substitute 36 for m in the equation:
cost = 30(36) + 150
Then solve:
C = 30(36) + 150
C = 1080 + 150
C = 1230

Answer 2

y=30x+150 you put 3 in for x which is y=30(3)+150 y=90+150 y=240