11 books;
157 books - 102 books = 55 books (donated)
55 books divided by those 5 months in between is 11 books
Answer:
c
Step-by-step explanation:


add -x to both sides

multiply both sides by -1/2


the equations don't have the same slope so they aren't parallel
The solpes product doesn't equal -1 so they aren't perpendicular
Answer:
Yessir
Step-by-step explanation:
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