The owner of a bookstore in a college town notices that demand for certain textbooks peak during certain times of the year. She assumes that these peaks coincide with the beginning of semesters when professors recommend these books to the students. She decides to estimate future sales of these textbooks by measuring the interconnection between sales and announcement of courses that recommend them. Which of the following methods of sales forecasting is she using? A) Jury of executive opinion method
B) Dependence method
C) Time-series analysis
D) Correlation analysis

Jamie is saving for a trip to europe. she has an existing savings account that earns 3 percent annual interest and has a current balance of $4,200. jamie doesn’t want to use her current savings for vacation, so she decides to borrow the $1,600 she needs for travel expenses. she will repay the loan in exactly one year. the annual interest rate is 6 percent. a. if jamie were to withdraw the $1,600 from her savings account to finance the trip, how much interest would she forgo? .b. if jamie borrows the $1,600 how much will she pay in interest? c. how much does the trip cost her if she borrows rather than dip into her savings?