Coffee Break

Your boss took everyone to the Java Zone for a coffee break. You sneaked a look at the check and you see that she is paying $15.75 for the three sandwiches, seven cups of coffee, and one piece of pie that were ordered. The next time, the check was exactly $21 for four sandwiches, ten cups of coffee, and one piece of pie.

If you go back by yourself and have one sandwich, one cup of coffee, and one piece of pie, what will you pay?


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