Math
posted by Anon .
a drugstore had a promotion in which $0.50 was refunded to customers for each $10.00 spent on merchandise. if a customer spent $20.00 on merchandise during this promotion, the refund was equal to what % of the amount spent?
1 1/4%
2 1/2%
5%
25%
50%

Math 
Ms. Sue
0.5/10 = x/100
Cross multiply and solve for x.
10x = 50
x = 5
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