At the beginning of 2006, the rate of energy consumption for the city of Denver was 7000 megawatts. The rate was expected to increase at an annual growth rate of 2% per year. The function that gives the rate of energy consumption for all times after the beginning of 2006 is P(t)=7000e 0.0198t
. a) Find the total amount of energy used during the first 4 years. b) Find the total amount of energy used during the year 2010.