Jacob tried to solve the following equation by completing the square. Interpret whether he solved it correctly or if he made a mistake. If he did make a mistake, identify where the mistake was made and
correct his work. Find all solutions and show all of your work for full credit.
1. x2 + 8x + 12 = 0
2. x2 + 8x = -12
3. x2 + 8x + 8 = -4

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?