Incorrect Question 7 0 I 6.6 pts The rate at which bacteria grows is proportional to the number of bacteria present. At time t = 2, 500 bacteria were present, and at timet = 6 hours, 1500 bacteria were present. Approximately how long does it take for the population to double? 2.5 hours 5.4 hours 7.6 hours 8.4 hours Set up an equation in the form 1; = P6.\" and then sub in the points (2, 500] and (6, 1500) to set up a system of equations. Use these equations to solve for R. Then use k in the original equation to solve for the doubling time