Sarah operated her lemonade stand Monday through Friday over a two week period and made a total profit of 450 dollars. On hot days she sold cups of lemonade for a price that was 25 percent higher than the regular days. Each cup she sold had a total cost of 75 cents and Sarah did not incur any other costs. If every day she sold exactly 32 cups and 3 of the days were hot, then what was the price of 1 cup on a hot day?  Select.
A) $ 1.50	B) $ 1.88	C) $ 2.25	D) $ 2.50	E) $ 3.25
7 regular days --&gt; sales = 7*32*x = 224x;   3 hot days --&gt; sales = 3*32*(1.25x) = 120x;   Total sales 3*32*(1.25 )= 
<gadget id="calculator">3*32*(1.25 )</gadget>
<output>120</output>
120x;   Total sales= 224x+120x = 344x.   Total cost 224 +120= 
<gadget id="calculator">224 +120</gadget>
<output>344</output>
344x.   Total cost= 10*32*0.75= 
<gadget id="calculator">10*32*0.75</gadget>
<output>240</output>
240.   Profit= 344x - 240 = 450 --&gt; x=2.   1.25x=~2.50.   Answer: $ 2.50.
<result>D</result>
Sarah operated her lemonade stand Monday through Friday over a two week period and made a total profit of 450 dollars. On hot days she sold cups of lemonade for a price that was 25 percent higher than the regular days. Each cup she sold had a total cost of 75 cents and Sarah did not incur any other costs. If every day she sold exactly 32 cups and 3 of the days were hot, then what was the price of 1 cup on a hot day?