I don’t understand this at all

What is the missing reason in the proof? segment addition congruent segments theorem transitive property of equality subtraction property of equality?

The image of abc after a reflection across eg is abc

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