Please help i can't figure this problem out choose 1 answer
A1/4
B1/3
C1
D1/2
How long did it take each time 18 liters of water were drained?​

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.