A roofer charges $60 for the first hour of a service call and $20 per hour for each additional hour, as shown on the graph below. Plumber's Prices Price in dollars) (3, 100) 140 120 100 80 60 40 20 (1,60) 1 2 3 4 5 6 7 Hours Look at the above Roofer's Prices graph and then answer the following questions. Part A What is the slope of a line joining the points on this graph? Show your work or explain your answer. Part B What does the slope represent?​

109 is the nearest whole number/final answer! : )

x/3-10=8

x/3=18

x=48

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

x = -5

step-by-step explanation: