Hi there!

To find our answer we need to collect the terms of the expression.

$9xy + 6xy - 2xy = \\ 15xy - 2xy = \\ 13xy$

The coefficient (which is the number just before the variable) of the simplified expression is 13.

3 0

4 years ago

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How to solve from 86 books to 150 books

True [87]

Hey!

I assume you're talking about percentage. What was the percentage increase from 86 books to 150.

Using the formula to find percentage increase, we will solve this:

{(86 - 150) / 86} × 100 = 74.42

So, the percent increase from 86 books to 150 is 74.42%

5 0

3 years ago

Annie graphed how many books in the school library are about her favorite subjects.

sergij07 [2.7K]

Answer:

100

Step-by-step explanation:

25+15+30+40-10=100

6 0

4 years ago