Jessica rents a booth to sell her necklaces at a craft fair. She uses the function p(x) cx-k to determine the profit she will make if she sells different numbers of necklaces at the craft fair. The expression part cx-k of the function has cand k representing constants. What did Jessica most likely use k to represent? The cost to make each necklace The price she charges for each necklace at the fair. The cost of participating in the craft fair The profit from participating in the craft fair.