Which of the following can be modeled with an exponential function? select all that apply.

1) height over time that a football is thrown across the field.

2) the cost to attend universal studios increases by 1% each year.

3) an endangered species population is decreasing by 12% each year.

4) the distance a bicyclist travels when cycling a constant speed of 25 mph.

5) the population of a town that is growing by 5% each year.