Farmer Fred has 50 animals on his farm that are cows and chickens and he knows they have a total of 140 legs. Assuming that each cow has four legs and each chicken has two legs, create a system of equations that could represent this situation then determine how many cows and chickens are on Fred's Farm

Out of the 180 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? 72% 40% 54% 98%