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?

Which expression is equivalent to sq-80

In 2009, there were 1570 bears in a wildlife refuge. in 2010, the population had increased to approximately 1884 bears. if this trend continues and the bear population is increasing exponentially, how many bears will there be in 2018?

Math question.. plz me .. best answer all