Answer:
1) d
2) 75
3) D (The hourly rate charged by the plumber)
Step-by-step explanation:
1) 15-3 = 12
12-4 = 8
10-2 = 8
20-5=15
15 is the largest number
2) 75 because 25 is where the slope begins and its not until 75 when connected.
3) The hourly rate charged by the plumber because at the side it says "total Charge (in dollars) and the number of hours.
