Oh yes... Wonderful Proportions. There are ways to do proportions but this is how I learned how to do them :
PART %
=
WHOLE 100 That is the formula. I'm not sure of an example but I hope it helps
Answer:
<h2>C. (13p+7) is the right answer.</h2>
This is the answer ,you should first do the multiplication then the sum.
72/rate=time
72/9=8 years
So the answer is c
