Answer:
A = 3 B = 180
Step-by-step explanation:
First you do 21/4 divided by 7/4 = 3. So 3 equals how many batches. Now since 5 dozen cookies in each batch and a dozen equals 12 cookies there are 60 cookies in each batch and since there are 3 batches you would do 60 * 3 = 180.
