Please help me, I want to check my answers along with someone else's because these are worth a lot of points.

Translate the word phrase into a math expression. 15 fewer than the product of 4 and a number. (pls immediately)

You have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint? you have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint?

What is the area of the shaded sector?