The population of fish in a tank at the aquarium is found to double every year. Mike visits the aquarium and counts 60 fish in the tank. Write a function f(n) to model the number of fish in the tank n years after Mike's visit. f(n) =​

Jackson drew 4 hearts and 29 circles. what is the ratio of circles to all shapes?

Avegetable garden and a surrounding path are shaped like a square that together are 11ft wide. the path is 2ft wide. find the total area of the vegetable garden and path

Four airplanes carrying a total of 400 passengersarrive at the detroit airport. the airplanes carry, respectively,50, 80, 110, and 160 passengers.a) one of the 400 passengers is selected uniformly at random.let x denote the number of passengers that were on theairplane carrying the randomly selected passenger. find var(x)for x as given in the problemb) one of the 4 airplane drivers is also selected uniformly atrandom. let y denote the number of passengers on the chosen driver’s airplane. find var(y) for y as given in the problem