Please help!! Which one would it be

Mexico city, mexico, is the world's second largest metropolis and is also one of its fastest-growing cities with a projected growth rate of 3.2% per year. its population in 1991 was 20,899,000 people. use the formula p = 20.899e0.032t to predict its population p in millions with t equal to the number of years after 1991. what is the predicted population to the nearest thousand of mexico city for the year 2010?

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air