Answer:
Step-by-step explanation:
First, we need to calculate how many cookies can the Bakery make in one minute.
So we use [tex]\dfrac{63}{9} = \dfrac{21}{3} = 7[/tex] to find out that the rate is 7 cookies per minute.
So in 20 minutes, the bakery can make [tex]20*7=140[/tex] cookies.