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Answer:Option B. 20 piecesStep-by-step explanation:The length of a strip of wood = 78 inchesThis strip of wood is to be cut into pieces =inchesWe have to calculate how many pieces can be cut.So first we convert mixed fraction to proper fraction and then to decimal.== 3.75 inchesNow we divide 78 inches to 3.75 inches.78 ÷ 3.75 = 20.8 pieceswe got 20 pieces ofinches.Option B. 20...