Find the surface area of the pipe if the diameter of the outer pipe is 12 cm, the diameter of the hole is 11 cm and the height is 30 cm. Answer needs to be in EXACT form (in terms or pi and/or in simplified radical form).​

Scarlett stopped at a campground along the appalachian trail. the campground had a 12 acre area for tents, divided into 6 equal campsites. scarlett picked one of the sections to pitch her tent. which expression would give you the size of scarlett’s campsite? (more than one answer