Which of the following can be modeled with a linear function? Select all that apply. The cost per visit to a community pool. The neighborhood charges a yearly fee to use the pool. The cost to attend a show at the local theatre. Tickets are $12 each. An endangered species population is decreasing by 15% each year. The distance a bicyclist travels when cycling at a constant speed of 30 mph. The population of a town growing at a constant rate each year.