1/4+1/3?!?!?!?!please help me QUICK its for my homework its due in a couple of hours!

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

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?

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?