Answer:
Bianca can make 28 pans of brownies in 7 hours
Step-by-step explanation:
As we know, 1 hour = 60 minutes
so, 1/2 hour = 30 minutes
Bianca takes 1/2 hour to make pans of brownies = 2 pans
Bianca takes 1 hour to make pans of brownies = 2 / (1/2) pans
Bianca takes 7 hour to make pans of brownies = 4 * 7 pans
= 28 pans
So, Bianca can make 28 pans of brownies in 7 hours.
