Answer:
5 hours
Step-by-step explanation:
y = mx + b
25 per hour = mx = 25x
40 service fee = y intercept = +b = +40
The equation is:
y = 25x + 40
To solve this, first subtract 40 from 165.
165 - 40 = 125
Now, divide 125 by 25 to find out how many hours he worked.
25 goes into 100 4 times.
100 + 25 = 125
25 goes into 125 five times.
125/25 = 5
He worked 5 hours.
