PLEASE HELP I WILL MARK BRAINLIEST

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.

Yo need asap pls ! markin da brainiest too !

How can constraints be used to model a real-world situation?