At summer camp, the campers pick two activities for the first day of camp. they can choose from among hiking, canoeing, rock climbing, and bird watching. how many different combinations of activities are there?

What are the possible rational zeros of [tex]f(x) = x^4+2x^3-3x^2-4x+18[/tex]

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

Agrid shows the positions of a subway stop and your house. the subway stop is located at (-5,2) and your house is located at (-9,9). what is the distance, to the nearest unit, between your house and the subway stop?