Given: angle 1 and angle 2 form a linear pair; angle 1 and angle 3 are supplementary Prove: angle 2 is congruent to angle 3

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?