The record low temperature for a city is 124 degree less than the high temperature. the sum of the high and low temperature is 72 degrees. what is the record low temperature

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?