Je ne comprends comment résoudre ce problème..

The number of 8th graders who responded to a poll of 6th grade and 8 th graders was one fourtg of the number of 6th graders whi responded if a total of 100 students responddd to the poll how many of the students responded were 6 th graders

Which of the following parabolas opens down?

My hour hand points between the 8 and the 9 in 35 minutes it will be the next hour. what time is it ?