A(1,4)b(4,4)c(4,1)d(1,1) where it is reflected on the y axis

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 hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

Write 17/20 as a decimal and as a percent.