During a summer month, the size N(t of an ant colony is given by N(t =(2t+150 In(+ 2 , where t represents the number of days since the beginning of the month.
a) How many ants are in this colony at the beginning of the month? (2 points)
b) How quickly does the size of this colony change after 10 days? Round your answer to the nearest whole number. Indicate the unit of measurement. (5 points)