Which statement is a contrapositive if a regular polygon is a regular hexagon which angle measures 120°

Ineed to know the answer to this algebra question.

One hectometer is a) 1/1000 of a meter. b) 1/100 of a meter. c) 10 meters. d) 100 meters. e) 1000 meters.

Solve this riddle: i am an odd number. i an less than 100. the some of my digit is 12. i am a multiple of 15. what number am i?