Answer:
84
Explanation:
This is a combination problem with repetition. Since there is an unlimited number of each type of cookie, we can choose 6 cookies from a pool of 4 types of cookies.
The formula for choosing r items from n types with repetition is:
(n + r - 1)C(r)
Where C is the combination function.
Using this formula, we can calculate the number of ways to choose 6 cookies:
(4 + 6 - 1)C(6) = 9C6 = 84
Therefore, there are 84 ways for Angelina to choose 6 cookies from Sam's Kookie shop, if she can choose any combination of chocolate chip, sugar, oatmeal, and snickerdoodle cookies with unlimited supply.