Nathan B. answered 03/22/17
Tutor
5
(20)
Elementary and Algebraic skilled
1 1/4 = 1.25
12 / 1.25 = 9.6
She cannot buy part of a plank, so this rounds up to 10 planks
Joseph B.
asked 03/22/17
Nathan B. answered 03/22/17
Elementary and Algebraic skilled
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