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Mathematics 15 Online
OpenStudy (anonymous):

Arts department store is having a sale. The table shows the regular price, r, and the sale price, s, of several items. A, r, 5.00, s, 2.50, b, r, 7.00 , s, 3.50, c, r, 10.00 ,s, 5.00, d, r, 12.00 , s , 6.00 . Which formula can be use to calculate the sale price? A s= r-2.5 b s= r x 2.0 c s= r x 0.5 d s= r - 0.5

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