An investment of $42,000 was made by a business club. The investment was split into three parts and lasted for one year. The first part of the investment earned 8% interest, the second 6%, and the third 9%. Total interest from the investments was $3480. The interest from the first investment was 6 times the interest from the second. Find the amounts of the three parts of the investment. The first part of the investment was $ The second part of the investment was $ The third part of the investment was $