Plz asap will get brainliest when it lets me what is the value represented by the letter c on the box plot of data? {80, 18, 34, 80, 59, 67, 12, 55}

Can someone me and plz do the problem

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?