A backpack is on sale for 25% off. After the discount is taken, a 7% sales tax is applied. If the original price of the backpack is p, which equation represents the final cost, c, in dollars, of the backpack? A. c= p(0.25) с — B. c = p(1.07) %3D C. c = p(0.25)(0.07) %3D D. c = p(0.75)(0.07) E. c = p(0.75)(1.07) %3D

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