How to write a word problem for 4 times 6

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,

Which of the following graphs could represent a cubic function?

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?