Problem: Laurie Kahala just received an opportunity to lease and install a self-photo booth at a local mall. The booth would allow people to sit down, swipe their credit cards and take a set of ten high quality photos in one sitting.
The combined lease (some payable to the mall, and the rest to company that owns the photo booth) would be $2,800 per month. Laurie's research shows that the variable cost to produce each set of ten photos (paper, ink, and electricity costs) would be $3.00.
If Laurie is contemplating selling the photos for $5.00 per set how many sets would be the minimum number she will need to sell in a month to make a profit?
A. 2,800 sets
B. 1,399 sets
C. 1,400 sets
D. 1.401 sets