Answer:
Your answer is Option B.
Step-by-step explanation:
First, you want to realize that the number of guests goes by groups of 7. With 63 being on 7's multiples, think about what multiplies by 7 to get 63: 9.
So, 7 x 9 = 63 guests. Now, multiply the ingredient amount by 9 as well. (2 amounts of mix x 9 = 18 cups and 1 amount of milk x 9 = 9)
Leading to 18 cups of mix and 9 cups of milk.
Hope this helps :)
