A video game designer is creating a new superhero, who will have 3 of 5 potential superpowers. How many combinations of superpowers could the new superhero have

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.