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

see below

step-by-step explanation:

x+2> 6

subtract 2 from each side

x+2-2 > 6-2

x > 4

there is an open circle at 4 since is it is greater than and the line goes to the right

c-   36

taxicab circle radius 9 has 4(9) = 36 points