The diagram shows a door that has a window in it. The front faces of the door and the window are similar rectangles that have the dimensions shown. window, h, 210 centimeters, 60 centimeters, 84 centimeters.

What is h, the height of the window in centimeters?

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.