Answer:
The equation the repair service use to charge customers is c = 30h + 40
Step-by-step explanation:
If h = 1
Cost, c = 30h + 40
= 30(1) + 40
= $70
h = 2
c = 30(2) + 40
= $100
h = 3
c = 30(3)+ 40
= $130
h = 4
c = 30(4) + 40
= $160
h = 5
c = 30(5) + 40
= $190
h = 6
c = 30(6) + 40
= $220
