After t days the size of a certain insect population is given by P(t) - 4000e0.3t. 1. Determine the growth constant of the population. Type your answer here: 2. What was the initial number of insects? Type your answer here: 3. When will the initial number of insects reach 8, 000 ? Type your answer here: (Round your answer to one decimal place as needed.) 4. How many insects are there after 8 days? Type your answer here: (Round your answer to the nearest whole as needed.)