Which One Doesn't Belong? Why? There are multiple reasons that each one of these 4 could be different than the others.

I just need an answer from one of these 4.

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.