One week, Sarah earned $192.00 at her job when she worked for 8 hours. If she is paid the same hourly wage, how many hours would
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Paul surely charges 75 dollars, and then he adds 40 dollars per hours. This means that the expression for the money he asks is
where is the amount of money and
is the number of hours.
Since can be at most 8, this is the case that generates the highest money, so if we plug
we have