So we need to convert 0.75 feet to inches.
0.75 feet = 9 inches
Then we divide 9 by how many hours are in a day: 24
9/24 = 0.375
The raindrop vine can grow up to 0.375 inches per hour.
A full rotation is represented by 360 degrees or 2pi radians, so
2/3 of a full rotation is repr. by (2/3)(360 deg) or (2/3)(2pi rad). (Simplify these.)
