No links, provide explanation.

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.

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

For what values of a is the sum of the fractions 2a−1 / 4 and a−1 /3 positive?