In the school library, there are 28 fiction items form every 3 non-fiction items. What is the best estimate of how many total items are in the library if there are 52 non-fiction items?

answer: translate the circles so they share a common center point and dilate circle y by a scale factor of 3.

first the equation needs to be simplified. so the equation would now look like:   52-24+11

then you multiply.

and when you multiply, you will get the answer of 39.