The volume of the prism shown is 84 cubic yards. What is the Height of the prism

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

If p(a) = 0.70 and p(b) = 0.20, then a and b are independent events if

In a small section of a stadium there are 40 spectators watching a game between the cook islands and fiji. they all support at least one of the two teams. 25 spectators support the cook islands and 16 of these support both teams. how many support only fiji?