2. First you would need to calculate what is needed for one serving.
chili powder (1 serving) = 3.5/2 = 1 3/4 teaspoons
olive oil ( 1 serving) = 1.5 / 2 = 3/4 tablespoons
So then you multiply each ingredient by three:
chili powder (3 servings) = 5 1/4 teaspoons
olive oil (3 servings) = 2 1/4 tablespoons
3. 7/8 of 16 ounces is 14 ounces. 1/7 of 14 ounces is 2 ounces.
So he uses 2 ounces in the quesadillas.