Answer:
$40
$15
$160
Step-by-step explanation:
Hours: x -axis
Cost: y-axis
Part A:
If Bob spends 0 hours at your house, it would still cost 40 dollars. Thus, the cost for him to come to your house is $40.
Part B:
When Bob spends 1 hour at your house, the cost is $55. So per hour, Bob costs 55 - 40 = $15.
Part C:
If you look at the chart, when x (hours) = 8, y (the cost) = 160
Thus, Bob would cost $160 for 8 hours
