Find the length of BC. Give your answer to 3 significant figures

Which of the following answers is 5/25 simplified? 1/5 5/5 2/5 1/25

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 always true about a positive integer raised to a negative odd power?