Answer:
10 1/8 cups
Explanation:
First, we need to find out how many cookies Betty is making in total.
4 1/2 dozen cookies = 54 cookies
Next, we need to figure out how many cups of chocolate chips Betty needs for one cookie:
1 7/8 cups ÷ 12 cookies = 3/16 cup of chocolate chips per cookie
Finally, we can calculate how many cups of chocolate chips Betty needs in total:
54 cookies x 3/16 cup of chocolate chips per cookie = 10 1/8 cups of chocolate chips
Therefore, Betty needs 10 1/8 cups of chocolate chips to make 4 1/2 dozen cookies.