Money that is collecting interest in a bank account doubles in value every 8 years When the account was opened, it had 8 or 2 ^ 3 dollars in it. After 32 years, the account balance has doubled 4 times, increasing by a factor of 2 ^ 4 It now has a balance of 2 ^ 3 * 2 ^ 4 Expressed as a power, how much money, in dollars, is in the account after 32 years? A. 4^7
B.2^12
C.2^4
D.2^7