1. Several years ago when Jhan Kenneth started working at the (PENELCO) Peninsula Electric Cooperative, Inc., where he received a starting salary of 1240 000 a year. He is now on his fifth year and earning P497 664 a year. Assuming that his yearly income follows a geometric sequence; a How much would be his annual salary by next year? b. How much would be his salary on his third year? c. How much is his total salary for working in five years in PENELCO?