Heather got a prepaid debit card with $15 on it. For her first purchase with the card, she bought some bulk ribbon at a craft store. The price of the ribbon was 8 cents per yard. If after that purchase there was $11.88 left on the card, how many yards of ribbon did Heather buy?

Answer 1

Heather had $15 - $11.88 = $<<15-11.88=3.12>>3.12 left on the card after buying the ribbon.
She bought $3.12 / $0.08 = <<3.12/0.08=39>>39 yards of ribbon. Answer: \boxed{39}.