The population of a southern city follows the exponential law. Use this information to answer parts a and b. (a) If N is the population of the city and t is the time in years, express N as a function of t.
N(t) =
(Type an expression using t as the variable and in terms of e.)
(b) If the population doubled in size over 14 months and the current population is 70,000, what will the population be 4 years from now?
The population will be approximately people.
(Do not round until the final answer. Then round to the nearest whole number as needed.)