The average weekly count of children serviced in your day care is 48. During the hours of operation, 40% of the average weekly count of children need space at any given time. 35 square feet is required per child. Square footage for present demand is a1 square feet. You wish to be able to handle 5 additional children on an emergency basis without a violation, what additional square footage is required? Square footage for 5 children is a0 square feet.