Question

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Claire's mom told her she could have whatever was left on her mom's Starbucks gift card. Claire always gets the
same drink when she goes to Starbucks. After she buys her first drink, the card's value is $22.67. After she buys
her third drink, the card's value is $13.59. How much money was left on the gift card when Claire's mom gave
to her?

Answer 1

Explanation:

The answer is $27.21

First, you want to calculate the cost of her drink. 22.67-13.59=9.08. This is the cost of 2 drinks. Dividing by 2, you can get $4.54 per drink. Adding this to the card's value after the first drink, we get 22.67+4.54=27.21