Obviously if the model wants to upgrade the kitchen, it should be done by either the landlord or a subcontractor. as he creates the ip model, the landlord wants to leave the choice of whether to actually upgrade the kitchen up to the optimization algorithm. how should this constraint be written if he uses the following scheme for decision variables? 5 points
x1 = contractor works on wood floors x2 = landlord works on wood floorsx3 = contractor works on kitchen tile x4 = landlord on kitchen tilex5 = contractor works on back door x6 = landlord works on back doorx7 = contractor works on garage door x8 = landlord works on garage doora) x3 + x4 ≤ 1b) x3 + x4 = 1c) x3 - x4 ≤ 1d) x3 - x4 = 1

Horace society is planning its annual western fair raceway gala. the gala committee has assembled the following expected costs for the event: dinner (per person) $10 gaming token and program (per person) $2 prize payouts $4,300 tickets and advertising $800 private box suite rental $1,700 lottery licenses $200 the committee members would like to charge $40 per person for the evening’s activities. required: 1. what is the break-even point for the dinner-dance (in terms of the number of persons who must attend)? 2. assume that last year only 200 persons attended the dinner-dance. if the same number attend this year, what price per ticket must be charged in order to break even? 3. refer to the original data ($40 ticket price per person). prepare a cvp graph for the dinner- dance from zero tickets up to 600 tickets sold.

Lillypad toys is a manufacturer of educational toys for children. six months ago, the company's research and development division came up with an idea for a unique touchscreen device that can be used to introduce children to a number of foreign languages. three months ago, the company produced a working prototype, and last month the company successfully launched its new device on the commercial market. what should lillypad's managers prepare for next? a. increased competition from imitators b. a prolonged period of uncontested success c. a sharp decline in demand for the product d. a difficult struggle to move from invention to innovation

Acompany sells garden hoses and uses the perpetual inventory system to account for its merchandise. the beginning balance of the inventory and its transactions during september were as follows: