How do you find the exterior angle of this one tho?

Which expression is equivalent to 4 square root 6 divided by 3 root 2

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

Tamera puts 15/4 gallons of gasoline in her car. which mixed number represents the gallons of gasoline? a) 2 3/4 gallons b) 3 1/4 gallons c) 3 3/4 gallons d) 4 1/2 gallons answer it's worth a lot of points!