Dustin is planning to open a catering business. indicate if each of the following examples represents a one-time fixed cost, an ongoing fixed cost, or a variable cost that his new catering business might incur. the van he purchases to transport food and equipment to catering jobs is the cardboard boxes he uses when delivering boxed lunches are the kitchen space he rents to prep meals is the monthly ad in a local magazine is the groceries he purchases for the meals he makes is