Question
Liam used 84 straws to make a total of 14 pentagons and heptagons. A pentagon was made using 5 straws and a heptagon was made using 7 straws. How many heptagons were there?
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Liam used 84 straws to make a total of 14 pentagons and heptagons. A pentagon was made using 5 straws and a heptagon was made using 7 straws. How many heptagons were there?