The expression 2l+2w represents the perimeter of the doctor's office. If the width w is 4 ft and the length l is 5 ft, what is the perimeter of the office? Be sure to show work. A. 9 ft B. 12 ft C. 15 ft D. 18 ft
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Step-by-step explanation:
perimeter=2×(length+breadth)
=2×(5+4)
=2×9
=18ft Ans.
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