Can anyone help with this ??

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.

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2

Shannon drove for 540 minutes. if she traveled 65 miles per hour, how many total miles did she travel?