knightzane
knightzane
10-01-2019
Mathematics
contestada
help with one homework question for all
Respuesta :
PhillSwift
PhillSwift
10-01-2019
Answer:
21 m
Step-by-step explanation:
P= a+b+c
so it be 9+7.5+4.5 = 21
9-1.5 = 7.5
9/2 = 4.5
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