S A particular type of bacteria is found to be capable of doubling in number about every 48.5 minutes. The number N of bacteria present after t minutes could be modeled by N(t) = Noe0.014t Su that No=500,000 is the initial number of bacteria per milliliter. Complete parts (a) and (b) below. (a) Approximate the number of bacteria per milliliter after 4 hours. After 4 hours, there are approximately 14,395,000 bacteria per milliliter. (Round to the nearest thousand as needed.) (b) Estimate graphically the elapsed time when there are 11 million bacteria per milliliter. There are 11 million bacteria per milliliter after approximately minutes. (Round the final answer to the nearest integer as needed. Round all intermediate values to the nearest thousandth as needed.)