Which one is the right answer pls hurry

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? a) 6 b) 8 c) 14 d) 20

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1