At the amusement park laura paid 6.00 for a small cotton candy her older brother works at the park and he told her that they mark up the cotton candy by 300% laura does not think that is mathematically possible is it possible and if so what is the price of the cotton candy before the markup

Frank is lending $1,000 to sarah for two years. frank and sarah agree that frank should earn a real return of 4 percent per year. instructions: a. the cpi (times 100) is 100 at the time that frank makes the loan. it is expected to be 113 in one year and 127.7 in two years. what nominal rate of interest should frank charge sarah?