What is the answer ? can someone me

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180

Use circumcenter theorem to solve for the given values

Dean and karlene get paid to write songs. dean is paid a one-time fee of $20 plus $80 per day. karlene is paid a one-time fee of $25 plus $100 per day. write an expression to represent how much a producer will pay to hire both to work the same number of days on a song.