Answer:
For 10 dozen cookies, you would need 32 cups of oats. Step by step:
Explanation:
1 dozen = 12 cookies
10 dozen cookies = 120 cookies ( multiply 10 *12)
15 cookies *8= 120 cookies
If for every 4 cups of oats you have 15 cookies, then you need to multiply 4 by 8 to get it equal to the amount of 120 cookies. If you multiply 15 by 8, then you multiply 4 by 8, which gets you 32 cups of oats.
Hope this helps!