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A gas station attendant looks over yesterday's sales report. She finds that 450 liters of regular and 320 liters of unleaded were sold for a total of $384.83. Regular was 5 cents per liter cheaper than unleaded. What were the two prices per liter yesterday?
Suppose 5 bales of hay are weighed 2 at a time in all possible ways. The weights in pounds are 110,112,113,114,114,116,117,118,120,and 121. How much does each bale weigh?
A rectangle has a length which is 3 more than its width. Write a polynomial P(x) which expresses the perimeter of this rectangle in terms of the width x.
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