Which of the following represent an exponential function? Select all that apply. * a) You travel on your bike at a constant speed of 20 miles per hour.
b) Each week you deposit $50 into your savings account.
c) An endangered species population is decreasing at a rate of 7.5%.
d) You earn $9.25 per hour at your part time job.
e) The high school population is growing at a rate of 5% per year.
Your fish tank fills with water at a rate of 1 gallon every minute.
A species of fly doubles in population each month during the summer months.
Your car depreciates at a rate of 9% each year.