Please help me with 5 thank you!

The function f(x)= -(x+5)(x+1) is down. what is the range of the function?

Convert the density of surface sea water to metric tons/cubic meter

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%