Brock is a plumber. He charges a flat rate of $40 to visit a house to inspect it's plumbing. He charges an additional $20 for ev
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Answer:
Step-by-step explanation:
We have the function:
And we want to find:
So, we will differentiate function <em>h</em>. By the chain rule, this yields:
Then it follows that:
Using the table, we acquire:
And using the table again, we acquire:
Evaluate. Hence: