Jessica chose a fruit cup and a salad as the side dishes with her lunch every day for 15 days.

Each fruit cup cost $0.75
Each salad cost $1.50
What was the total cost of Jessica’s side dishes for 15 days?

The cost of the fruit cup per day is $0.75 and the cost of the salad per day is $1.50.

So, the total cost of Jessica's side dishes per day is $0.75 + $1.50 = $2.25.

For 15 days, the total cost of Jessica's side dishes will be $2.25 x 15 = $33.75.

Therefore, the total cost of Jessica’s side dishes for 15 days was $33.75.