A certain population of bacteria doubles every 10 minutes. If the number of bacteria in the population initially was 10^5, then what was the number in the population 70 minutes later?
Select.
A) 2(10^5) B) 7(10^5) C) (2^7)(10^5) D) (10^7)(10^5) E) (10^5)^7
Every 10 minutes, the population is double the previous population.   In 70 minutes, the population doubles 7 times.   The population then is 2^7*10^5.   The answer is (2^7)(10^5).
<result>C</result>
A certain population of bacteria doubles every 10 minutes. If the number of bacteria in the population initially was 10^5, then what was the number in the population 70 minutes later?