had a balance of $2,539.78 in her savings account. She withdrew $150.00 and the teller credited her account with $6.19. What is her new balance?

Initial balance = 2,539.78

withdraw (out of account) = -150.00
credit (into account) = 6.19
total change in the account = -150 + 6.19
= -143.81
Initial balance - total change = 2,539.78 - 143.81
= final balance

To find her new balance, you need to subtract the amount she withdrew from her initial balance and then add the credited amount.

Let's break it down step by step:

1. Start with the initial balance: $2,539.78.
2. Subtract the amount she withdrew: $2,539.78 - $150.00 = $2,389.78.
3. Add the credited amount: $2,389.78 + $6.19 = $2,395.97.

Therefore, her new balance is $2,395.97.