Kym bought x juice boxes. She paid $0.78, including tax, per juice box. She gave the cashier $20 and received $6.74 in change. How many juice boxes did Kym purchase?
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Answer:
17
Step-by-step explanation:
cost of 1 juice box =$0.78
Money left back by cashier to kym = $20−$6.74= $13.26
no. of such juice boxes = $13.26/$0.78
=17
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