davisnaziyahovz5sk davisnaziyahovz5sk 17-01-2020 Mathematics contestada Genevieve is buying a car audio system that consists of a stereo, speakers, and amplifiers. She is choosing between 5 types of stereos and 2 types of amplifiers. If she has a total of 30 choices, how many types of speakers must there be? 3 6 10 20