Find the volume of a pyramid with a square base, where the area of the base is 12.5\text{ ft}^212.5 ft 2
and the height of the pyramid is 16\text{ ft}16 ft. Round your answer to the nearest tenth of a cubic foot.

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?