2numbers that mulitply to be negative 486 and add to be 9

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.

What is fraction that is equivalent to 3/8

Which of the following scenarios demonstrates an exponential decay