What’s the missing digit?
1 answer:
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Since there is a $5 delivery charge, Valerie will surely spend those money.
Also, since a salad costs $7, and Valerie buys 3 of them, she will spend 21 more dollars.
So, salads and delivery charge sum up to
This means that Valerie has dollars left. A drink costs $3, so she can buy
drinks.