Ok help So my grade rn in science is a 80 (a B) and i need to get it up to an A and if i just turned in a test and got an 100 but an 80 on another one and a 100 on an assignment, will that get my grade up to an A or still B??

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.