D
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Answer:
$82 per hour
Step-by-step explanation:
Total cost to customer: $490
Cost for parts: $285
$490-$285 = $205
There is a total labor charge of $205.
The problem tells us that the customer paid for 2.5 hours of labor.
$205/2.5 hours = $82.00 per hour.
Answer:
Step-by-step explanation:
12 / 20 = 0.6 holes per hour
The answer is 56.5 you take pie times the radius squared