23. The mass of a certain type of bacteria grows exponentially, doubling every 20 minutes. What was the mass, in milligrams, of the bacteria exactly 2 hours after the mass first reached 10 milligrams?
Answer and Explanation
Your Answer is
Correct Answer is D
Explanation
2 hours are 6 20 minutes, that is, f(6) = 10 × 26 = 640