A class votes for their class president Candidate A receives 21 votes, which is 60% of the vote.
What is the total number of students who voted?

Find the zeros of each function. f(x) = 6x^2 - 7x - 20

The graph shows the decibel measure for sounds depending on how many times as intense they are as the threshold of sound. noise in a quiet room is 500 times as intense as the threshold of sound. what is the decibel measurement for the quiet room? 20 decibels28 decibels200 decibels280 decibels

I'm confused on how to solve the triangle. can someone me ?