Answer:
$151.34
Explanation:
First, Karla starts with $138.72.
Then Karla writes checks for $45.23 and $18.00. This means the money will be withdrawn, so let's subtract these from the total.
$138.72 - $45.23 - $18.00 = $75.49
Now, Karla has $75.49 in her account.
However, a $75.85 deposit is made to her account. So let's add this back to the total.
$75.49 + $75.85 = $151.34
So after all the transactions, Karla has $151.34 in her checking account.