The population, p, in millions, of ethiopia was 72.5 million in 2004

The population, P, in millions, of Ethiopia was 72.5 million in 2004 and growing at an annual rate of 2.5%. Let t be time in years since 2004. (a) Express P as a function in the form P=P0 a^t. P= (b) Express P as an exponential function using base e rounding the continuous growth rate to five decimal places. (c) Compare the annual and continuous growth rates.