Final answer:
Julie's total loss over the four days is $24 after adding her losses and profit from each day.
Step-by-step explanation:
To calculate Julie's total profit or loss over the four days, we will add up the gains and losses from each day. The losses are represented as negative numbers, while profits are represented as positive numbers.
- Thursday's loss: -$14
- Friday's loss: -$15
- Saturday's loss: -$13
- Sunday's profit: +$18
Adding these amounts together:
-$14 (Thursday) + -$15 (Friday) + -$13 (Saturday) + $18 (Sunday) = -$24
Julie has a total loss of $24 over the four days.