3. (1 point) If $7000 is deposited into an account paying a nominal in- terest rate of 9% per year, how much is in the account 6 years later if interest is compounded (round all answers to the nearest cent; do not write your answers with commas) : (a) annually? $ (b) continuously? $ Answer(s) submitted: (incorrect) 4. ( 1 point) The expression can be written as / Q where f (x) is a function of x. Find /(x). Answer(s) submitted: (incorrect) 5. (I point) Under ideal conditions a certain bacteria pop- ulation is known to double every 2 hours. Suppose there are initially 200 bacteria. 1. What is the size of the population after 6 hours? Answer: 2. What is the size of the population after / hours? Answer: 3. Estimate the size of the population after 19 hours