Answer:
D
Step-by-step explanation:
They didn't provide the number for one of the faces btw..
m = -5.3
-39.75 = 7.5m
Divide both sides by 7.5 to get m alone
-39.75/7.5 = 7.5m/7.5
-5.3 = m
Hope this helps:)
Take a better pic and i will explain in comment
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