Answer:
-2
Step-by-step explanation:
Definition of coefficient: a numerical or constant quantity placed before and multiplying the variable in an algebraic expression
Answer:

Step-by-step explanation:
Hope this helps!
Answer:
c
Step-by-step explanation:
i know it c
Answer:
30 books
Step-by-step explanation:
bookshelf is 45 inches
each book is 1 1/2 inches
45 / 1 1/2 = 30
30 books can fit on the shelf
9000mm
because there is ten mm in one cm