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3 votes
Help with one homework question for all

Help with one homework question for all-example-1

1 Answer

6 votes

Answer:

21 m

Explanation:

P= a+b+c

so it be 9+7.5+4.5 = 21

9-1.5 = 7.5

9/2 = 4.5

answered
User Nada
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