Answer:
The money earned increases by $15 for each hour worked.
Step-by-step explanation:
Simply find the slope by using the formula:
m = y2 - y1 / x2 - x1
m = 165 - 105 / 9 - 5
m = 60 / 4
m = 15
Answer:

Step-by-step explanation:
Given:
The given AP is.
12,0,-12,......

The first term of an AP 
Common difference 
We use the the formula for nth term of an AP.
for 87th term





Therefore, The 87th term of given series is -1020.
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