5x+y=13
20x+4y=64
please help me...
Answers: 2
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Tommy buys a sweater that is on sale for 40% off the original price. the expression p -0.4p can be used to find the sale price of the sweater, where p is the original price of the sweater. if the original price of the sweater is 50, what is the sale price?
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If x varies directly as y, and x = 7.5 when y = 10, find x when y = 4
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