During a fundraiser at virginia middle school, the school received $10 for every 3 items sold. if the students sold 300 items, how much money did virginia middle school receive?

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?