Iwrote the problem wrong earlier. : /here it goes! (5b - 9) - 3(8 - 2b)and could you give me tips on solving these kind of problems? .-math disaster

Ou have a 20-ounce bottle of juice. you pour out 14 of the bottle to share with a friend. if you pour out 3 ounces for yourself, what fraction of the 20 ounces will be left in the bottle? clear check 35 25 12 1320

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?

Its worth 10000000 points need asap if you answer correctly ill mark brainliest