Baa baa the black sheep had 7pounds of wool. if he separated the wool into 3 bags, each holding the same amount of wool, how much wool would be in 2 bags.

Out of the 150 students at a summer camp, 72 signed up for canoeing. there were 23 students who signed up for trekking, and 13 of those students also signed up for canoeing. use a two-way table to organize the information and answer the following question: approximately what percentage of students signed up for neither canoeing nor trekking?