Find the dimensions of the box described.
the length is twice as long as the width. the height is 4 inches greater than the width. the volume is 720 cubic inches.

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.