7-2 M7-3 Identifying Relevant and Irrelevant Costs Isabella Canton is considering taking a part-time job at a local clothing store. She loves the store and shops there often, but unfortunately, employee discounts are given only to full-time employees. If Isabella takes this job, she would have to withdraw from her Tuesday night basket-weaving class to work. Accepting the job also would mean that Isabella must give up her volunteer work at the local animal sanctuary, an activity she enjoys a great deal. The new job would pay approximately $125 per week but would cost Isabella $15 per week in gas. Isabella would be able to keep her Saturday afternoon job at the library that pays $40 per week. A list of factors Isabella has identified follows. For each one, indicate whether it is relevant of irrelevant to Isabella's decision. 1. The $125 income from the new job. 2. The $40 income from the library. 3. The $50 nonrefundable registration fee Isabella paid for the basket-weaving class. 4. The $15 cost for gas. 5. The $75 per month Isabella spends for clothing. 6. The time Isabella spends volunteering at the animal sanctuary