Question

Christy bought an 8-foot piece of lumber to trim a book shelf. Altogether,she needs 100 inches of lumber for the trim. Did Christy buy enough lumber ? Explain.

Answer 1

8 feet of lumber would be
8*12 = 96
if she got 100 inches of lumber... she has enough

Christy did buy enough lumber...

Hope this helps ;)

Answer 2

Christy didn't buy enough lumber. If you convert 8 feet into inches you only get 96 inches of lumber and she need 100 inches.