In a certain population of microbes in a petri dish, the rate of increase in the population is 9 percent per hour. The time it takes for a given population to double can be estimated using the formula \(70/t\) hours, where t is the rate of increase per hour expressed as a percent. If the number of microbes in the dish is 60,000 at the start of the first hour, what will be the approximate number of microbes after 48 hours?
A. 120,000
B. 420,000
C. 720,000
D. 1,900,000
E. 3,800,000![]()
A. 120,000
B. 420,000
C. 720,000
D. 1,900,000
E. 3,800,000