Using proportions, it is found that she makes 4.125 cups of salad dressing.
A proportion is a fraction of a total amount.
In this problem, she makes 3 batches, each with 8 fluid ounces of oil and 3 fluid ounces of vinegar, that is, each with 11 fluid ounces, hence she used 3 x 11 = 33 fluid ounces.
Since each fluid ounce is equivalent to 0.125 cups.
33 x 0.125 = 4.125.
She makes 4.125 cups of salad dressing.
More can be learned about proportions at https://brainly.com/question/24372153
