Question

You are making cookies for a bake sale and need to make enough cookies to fill 24 boxes containing 6 cookies each. How many dozen cookies do you need to make?

Answer 1

How many cookies do you need?

wait a second, we can make this easier
1 dozen=12 cookies
1/2 dozen=6 cookies=number of cookes per box

so you need to fille 24 boxes with 1/2 dozen each

so 24 times 1/2 dozen=12 dozen

you need 12 dozen or a dozen dozen cookies