In a(n) auction, companies invite sellers to submit bids for products and services so that the buyer can choose the seller that offers the service or product at the lowest price.

Jimmy owns an ice cream parlor. he designs a schedule for the different tasks the employees have to perform in order to prevent monotony at work. according to the schedule, if an employee makes waffle cones on a day, he serves ice creams the next day and clears the tables on the day after that. jimmy is using the approach at his ice cream parlor.

Atlas manufacturing produces a unique valve, and has the capacity to produce 50,000 valves annually. currently atlas produces 40,000 valves and is thinking about increasing production to 45,000 valves next year. what is the most likely behavior of total manufacturing costs and unit manufacturing costs given this change? a. total manufacturing costs will increase and unit manufacturing costs will also increase. b. total manufacturing costs will stay the same and unit manufacturing costs will stay the same. c. total manufacturing costs will increase and unit manufacturing costs will decrease. d. total manufacturing costs will increase and unit manufacturing costs will stay the same.

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends > a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?