P to the power of two m/4; use m=4 and p=7

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

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?

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)