Answer:

Step-by-step explanation:
Let's solve this problem step-by-step. The library had 1,500 books in 2011. The ratio of books in 2011 and in 2012 is 1:2. Therefore, let the number of books in 2012 be
.
We have the following proportion:

Therefore, there were 3,000 books in 2012. The ratio of books in 2012 and in 2013 is 2:5. Let the number of books in 2013 be
.
We have:

Therefore, there were 7,500 books in 2013.
What number line?:/ This is a unanswered question that you just created
The answer is A because 500 x 6 equals 3000 and 5000 minus 3000 equals 2000
So basically, the 2 is the y- intercept which means that is where your line starts. The 1/2 is the slope which means you make a dot every time you go up 1 and over 2
Answer:
3.625
step by step explanation :
I just simply searched it up