At a local bakery, it costs $5 for 1/4 of a pie. What is the cost of a whole pie?​

You’re repairing a large rectangular aquarium. the final step is to cover the glass with a protective film. the front and back of the aquarium measure 4 meters by 2 meters, and the sides of the aquarium measure 3 meters by 2 meters. how many square meters of protective film do you need? ( )

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

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?