63,__47,39 find the blank

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?

This is so hard and it’s for a test

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply