Question 58433
(N)t = 50(2)^t
After 20 minutes:
(N)t = 50(2)^20 = 52,428,800
After 120 minutes:
(N)t = 50(2)^t = 6.6461399789245793645190353014017 x 10^37
or: 66,461,399,789,245,793,645,190,353,014,017,000,000