PLEASE HELP ME SOLVE THIS !!! TY SPAMMERS WILL BE REPORTED

In the final round of trivia competition, contestants were asked to name as many states that begin with the letter m as they could in 15 seconds. the bar graph shows the number of states the contestants were able to name. how many contestants participated in the final round of the competition?

Which of the binomials below is a factor of this trinominal? x^2-13+30

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?