Pretty Flowers Florist's average total cost at their current output level equals $6.60
Average total cost (ATC) refers to the average cost incurred by a business or organization to produce each unit of a product or provide a service.
It is calculated by dividing the total cost by the quantity produced or serviced.
Given data: AFC = 4.40 & AVC = 2.20
Average Total Cost (ATC) = Average Fixed Costs (AFC) + Average Variable Costs (AVC)
ATC = $4.40 + $2.20
ATC = $6.60.
Therefore, the Option C is correct.