Find the perimeter of (the distance around) the figure.

A. 409 ft
B. 263 in.
C. 117 in.
D. 409 in.


Answer: D

Mathematics

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Solve.Martha can rake the leaves in her yard in 3 hours. Her younger brother can do the job in 7 hours. How long will it take them to do the job if they work together?

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