Please solve for a: b = 2 - (1/a)

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?

I’m which figure is point g an orthocenter

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take