An initial population of 10 fish is introduced into a lake. This fish population grows according to a continuous exponential growth model. There are 28 fish in the lake after 6 years. (a)Let t be the time (in years) since the initial population is introduced, and let y be the number of fish at time. Write a formula relating y to t . Use exact expressions to fill in the missing parts of the formula. Do not use approximations.