To find the timeline in years, t , for a certain plan to add fluoride to the water of a small community, use the equation t=((c)/(p))/(s) , where c is the estimated cost of dental work without fluoride, p is the population of the community, and s is the savings. What is the timeline for a town that has a population of 21,672 , has estimated costs of $⁢5.4 million, and wants to save $⁢42.50 per person? Round the answer to the nearest whole number if necessary. Enter your answer in the box. [Blank 1] years