Given the following unit circle, rotate green dot to the appropriate angle and then find the exact value of the function.
cos 135°
Y

Kevin and randy muise have a jar containing 78 coins, all of which are either quarters or nickels. the total value of the coins in the jar is $13.90. how many of each type of coin do they have?

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?

Simplify the expression and find the missing terms. the simplest form of has in the numerator and in the denominator.