On January 1 1970 Lois deposited $1950 into the savings account paying 6.6% interest. If she hasn’t made any additional deposits or withdrawals since then and if the interest rate has stayed the same in what year did her balance hit $3900 according to rule of 72

Lois's balance would have been $3,900 starting January 1, 1981.

Step-by-step explanation:

72 / 6.6 = 10.9 years

describing distributions is one of the key skills you’ll need to earn a high score on the ap statistics exam. if you need proof of this, just flip through some past exam questions, which can be found at the collegeboard website. you’ll notice that the first free response question is almost always a question requiring you to look at a graph and describe it.

step-by-step explanation: just trying to get points sorry : (