Answer:
To calculate how much will be in Tallulah's account after 6 weeks, we need to find out how much her balance will increase each week due to her steady deposits, and then add that to her current balance.
Since Tallulah is depositing $21.35 per week, her balance will increase by that amount each week. After 6 weeks, her balance will have increased by:
$21.35/week x 6 weeks = $128.10
To find out how much will be in her account after 6 weeks, we need to add the amount of her balance increase to her current balance:
-$39.35 + $128.10 = $88.75
So after 6 weeks of making steady deposits, Tallulah's account will have a positive balance of $88.75.