A surveyor stands 186 feet from the base of a cliff and measures the angle of elevation to be 56 degrees. His eye level is 5 feet above the ground. What is the height of the cliff to the nearest foot?

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?