How do the changes in velocity of ball 1 and ball 2 compare in elastic (bouncy) and inelastic (sticky) collisions? Use these number lines to help you decide.

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.