Based on Lauren's spending patterns and the balance in her account, her new balance must be an overdraft of $180.
Her balance after the vacation can be found as:
= Balance before vacation - ( Amount spent)
= 60 - ( 80 x 3)
= 60 - 240
= -$180
In conclusion, she will have a bank overdraft of $180.
Find out more about bank overdrafts at https://brainly.com/question/8283687.