How do i solve for the missing value in the proportion

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?

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

The reflexive property of congruence lets you say that ∠pqr ≅