Plz tell me and let me know if this is correct.

Ab based on the given diagram, if m_1 = 60° then m 2 = 30 60 90 180

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9

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?