Suppose you won a $75,000 after-tax cash prize in the lottery. you want to start a new business that you think will lose money for a while, after which it will be up and running and bringing in big bucks. you plan to invest the funds immediately in securities that are expected to earn 10% per year. suppose you would need only $20,000 per year during the start-up period. how long could you operate before you would require cash from the new business, i. e., how long could you receive payments of $20,000 per year? the first withdrawal will be made a year from today, and your answer will contain a fraction of a year.

Problem 3: access control pokeygram, a cutting-edge new email start-up, is setting up building access for its employees. there are two types of employees: managers and engineers, and there are three departments: security, networking, and human resoures. each employee works in a single department, and each department is housed on a different floor. managers are allowed access to any floor, while engineers are allowed access only to their own floor. there are three badge-operated elevators, each going up to only one distinct floor. every employee has one badge. pokeygram wants to use the best possible access control method in order to minimize delay for the elevators (a) access control matrix, 1. which of the following would you recommend that pokeygram use: (b) access control lists, or (c) capabilities? make sure to justify your answer. 2. what, if any, would be the benefits (and/or disadvantages) of using rbac (role-based access control) in this situation? keep your solution for this problem limited to 10-12 lines of text.