Sean places 28 tomato plants in a row. all rows contain the same number of plants. there are between 5 and 12 plants in each row. how manyplants are on each row

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.