Printing paint a setup fee of $38 and $3 for every book printed

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?

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.

Which polygon is she in the process of constructing ?