Look at the picture I keep getting it wrong

Isee the amount was $90.00 then reduced to $75.00 , what is the percent ?

Find the balance at the end of 4 years if 1000 is deposited at the rate of

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?