F(x)=x^4+8x^2-9
Find the factors and and zeros

2-digit numbers less than 91 which are 1 less than a multiple of 10

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?

What is the shape of the height and weight distribution