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A) As 28 pounds of seeds are required to plant 4 acres of land, therefore by applying unitary method, 1 pound of seeds would plant 4/28=1/7=1.428 acres of land.
B) As Ashley could buy from $$7, 16 pounds of rice, therefore by applying unitary method, $$1 could buy 16//7 pounds of rice = 2.286 pounds of rice.
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