An investment of $1 is put in an account. every 8 years, the money doubles. no additional money was added to the account. would the expression 1*2*2*2*2*2*2 correctly represent how much was in the investment account after 48 years?

Yes

Step-by-step explanation:

The amount of money is doubled after 8 years. 48 years is equivalent to 6 periods of 8 years so the investment doubled its value a total of 6 times. That's why you have to multiply 6 times by 2, and the total amount in the investment account after 48 years would be then , as you correctly assume.

step-by-step explanation:

the answer is 89 d

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