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Question:

Martin’s bed is 7 feet in length. Which of the following represents the length of the bed, in centimeters?

A 213.36 cm
Explaination

Since 7 feet equals 84 inches, and 1 inch equals 2.54 centimeters, the following proportion can be written: $7842_w78_h38.png$. Solving for x gives: x=213.36. Thus, the bed is 213.36 centimeters in length.