"Kirstin is thinking about opening an Italian restaurant and needs to buy a dough maker. Machine A has fixed costs of $300 and variable costs of $1/pound. Machine B has fixed costs of $1000 and variable costs of $0.30/pound. What is the crossover point? For 500 pounds of dough, which machine is better?"

Which of the following describes one of the ways that the demographics of an area affect the price of housing in that area? a. when more people have children, their incomes tend to be higher and the housing prices are also higher. b. older people are more likely to stay in their houses, creating a seller's market that keeps prices low. c. an area with a lower population density won't have enough construction workers to build new houses quickly. d. an area with younger people will have a higher demand for rentals and a lower demand for buying.