5x-3.5=12.5 what is x?

Because of your favorite lemonade it is $3.84 for 3 gallons. write this as an unit rate

Turner's mom measured his room to see how long the wallpaper border needed to be. if two walls are 15 feet long and two walls are 12 feet long, how long should the strip of border be cut?

Given: ∆mop p∆mop =12+4 3 m∠p = 90°, m∠m = 60° find: mp, mo