The figure is made up of 2 hemispheres and a cylinder. what is the exact volume of this figure? 126π in.³ 378π in.³ 396π in.³ 648π in.³ a 10 inch cylinder with two domes on each end with diameters of 6 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.