Every node in a network flow problem has a decision variable associated with it

Mini-CaseBriana, a successful executive, is also a cardio queen. For years she worked out at Forever Fitness Gym, the only gym in her small hometown. However, she felt that the environment at Forever Fitness was too masculine, and discovered that her female friends agreed. They disliked the small, smelly locker room, and the limited selection of cardio equipment. Most of them eventually quit going to Forever Fitness. Briana talked to Jim Nasium, the owner of Forever Fitness, about things he could do to attract more women, but he had little interest in making any changes. "I've got all the business I can handle," he told Briana. "Why should I spend a bunch of money to redecorate and add extra equipment?

Besides, lots of the guys who work out here tell me they like the simple, no-frills atmosphere."Frustrated by Jim's indifference, Briana began looking into the possibility of starting a gym to appeal to young, well-educated women. After visiting gyms in other towns and talking to several friends to get ideas, she came up with a detailed plan for her gym. She then described her ideas to women in the community to see how much interest there was in this type of facility. The extremely positive response encouraged her to go ahead with her plans. It took a while, but she ultimately obtained the financial backing to go into business.Briana calls her new health club ShapeUP. It offers a spacious and attractive locker room, better cardio equipment, a child care area so young mothers can have someone watch their toddlers while they work out, and exercise classes designed to appeal to young women. When a woman joins her club, Briana schedules a free session with a personal trainer who works with the new member to design a personalized workout program. Briana tries hard to keep close to her customers by maintaining a social media presence, sending them a monthly e-mail newsletter, and routinely sending surveys asking what they like and don't like about ShapeUP. She wants to please her existing customers and keep them coming back. In fact, now that ShapeUP has a strong membership base, Briana believes it is more important to keep existing customers loyal than to attract new customers. In addition to the comments from her own customers, Briana also spends a lot of time tracking economic, social, and competitive trends in the fitness industry, trying to identify factors that can affect the marketing success of her club. She subscribes to several journals and magazines that cover trends and report on research findings related to the business. She has found that these publications provide her with an inexpensive source of useful information.The fact that ShapeUP is designed to appeal to women of a certain age, education, and income level means that Briana is using A. demographic segmentation. B. volume segmentation. C. geographic segmentation. D. psychographic segmentation.

The Druid Fund has a NAV of $9.00 and an offer price of $9.45. We know, then, that

A) Druid is a load fund. B) Druid is about to be issued to the public as a no-load fund with a $0.45 offer cost. C) shares can be purchased only through a stockbroker. D) there is a $0.45 premium paid to investors to buy the shares.