PART 1
1) part-to-part

2) percent of the part to the whole of the problem

3) part-to-whole

4) to subtract the numbers. ex. 45 students - 6 students = 39 students

PART 2
1) 17,000 soilders-to-30,000 rifles

2) 56% of the soilders have rifles

3) 17,000/ 30,000

4) the difference is 13,000 rifles

1) For two parrallelograms to be similar, the angles can't change, and the scale factor has to be even (works for the both of them).

2) To find a missing side length, one way is to find the SF then divide the SF into the corrosponding side to fins the missing side length.

3) The side lengths that are missing are both 10 inches long. The scale factor is 2.5, I know this because 7.5 is 2.5
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