Answer:
I might have bought about 9 books
Answer: 5 1/4 x 1 1/5 = 7 1/2 + 3/8 -> 7 7/8
The answer is 7 and 7/8
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Step-by-step explanation:
hope this helps
M=-3
10=7-m
Subtract 7 from both sides
3=-m
Divide by negative
-3=m