Question 1194077
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x = number of 50-cent price increases
3+.50x = price per rental after x price increases
38-4x = number of rentals per day after x price increases<br>
Revenue is number of rentals times price per rental<br>
{{{b(x)=(3+.50x)(38-4x)}}}<br>
{{{b(x)=114-12x+19x-2x^2}}}<br>
ANSWER: {{{b(x)=-2x^2+7x+114}}}<br>