Can someone help me please

On an airplane there are two seats on the left side and three seats on the right side there are 90 seats o the right side of the plane

Anyone know? will mark brainliest if correct!

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.