Answer:
$15 per hour
Step-by-step explanation:
If you look ay hour 1 you can see it is just shy of 80 therefore it would be a $15 increase if you look at hour 2 you can see it is between 80 and 100 which would be 90 that would be 60+15+15=90
C; $30 per hour
120/4=30
If you find one of the coordinate points, you can divide y by x to find the answer since it is asking for per hour.
