Following his high school graduation, Brandon buys a new laptop for $1,500 through BestSpend's payment program which requires no money down and only a $40/month payment at the end of each month. Interest on purchases through this program accrues at 25% APR compounded monthly.

Instead of the $40/month minimum payment, assume that Brandon decides to pay $100 each month. How long will it take Brandon to pay off his laptop now? (see Practice Problem 4)
A. 20.1 months
B. 17.7 months
C. 18.2 months
D. It will take Brandon just as long to pay off the loan as the $40/month payment would.

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.