Step-by-step explanation:
= 55 - 2x is the answer .
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Answer:
Step-by-step explanation:
R would equal -189, there is step by step in the picture
Multiply 9 books by 55% by doing
9 x .55 = 4.95
We can't have 4.95 books, though so it rounds down to 4 because you can't just add another .05.
