Answer:
7.875 cups of salad dressing (round if necessary)
Step-by-step explanation:
For one batch of salad dressing we need to add the 1.5 cups of olive oil and .75 cups which equals 2.25 cups in total for 1 batch of salad dressing.
In order to find the amount of cups for 3 1/2 batches we need to multiply. If you have trouble with fractions feel free to convert 3 1/2 to 3.5. When 3.5 is multiplied with 2.25 we get 7.875 cups.
Hope this helps!