Alice is planning to open up a sandwich shop. An estimate of her costs/revenues are as follows: average sales price per sandwich: $12.75; yearly rent: $12,000; monthly fixed utility bill: $800; average cost of ingredients per sandwich: $3.55; monthly labour bill (fixed): $10,500; miscellaneous fixed supplies: $1,000; misc. variable supplies: $0.60 per sandwich. How many sandwiches does she need to sell per month to break even? 1.547 units 2,826 units 1,506 units 4.604 units