Andy got a 32% discount on all his purchases at his favorite shop. If he saved $64 on the total bill, the bill amount without the discount was

and he paid $

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Let x be the value of the his purchases without the discount. The $64 is the value of the 32% discount.

64 = 0.32x; x = 200

Thus, he should have paid $200 if there was no discount. The amount he paid (p) is only 68% of this value. p = (0.68) (200) = 136. Hence, he paid only $136.