The work is shown below, x=3. i hope this helps!
17. (5a+ 6)2 =
1 answer:
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Answer: $26
Step-by-step explanation:
Let the number of $2 price increases be x.
This means that if the price is 10+2x, 42-2x shoes are sold.
So, the revenue is (10+2x)(42-2x).
To maximize profit, we must maximize revenue.
The maximum is at , so the price should be 10+2(8)=$26.