Answer:
10 teaspoons
Explanation:
1 dozen of cookies= 12 cookies
4 teaspoon of cinnamon ----- 2(12)= 24 cookies
Amount of cinnamon needed per cookie
![= (4)/(24) \\ = (1)/(6) \: teaspoon](https://img.qammunity.org/2021/formulas/mathematics/college/bmgt1da4k9xaf6u1abl9l95qowuqoywv7j.png)
Teaspoons of cinnamon needed for 60 cookies
![= 60( (1)/(6) ) \\ = 10](https://img.qammunity.org/2021/formulas/mathematics/college/x2rm6k1rltyw2grztbskff2ho5ig371yby.png)
Thus, 10 teaspoons of cinammon is needed for 60 oatmeal cookies.