Nick starts with 20 mg of a you active substance dumb mouth of the substant decreases by 1/2 each week for a number of weeks w he writes the and pressure expression to wani parantheses of 1/2 parentheses w to find their mouth of radioactive services remaining after w weeks

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?