X^2 -11x +30 in factored form

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

Simplify the expression. -2/5(10+15m-20n)