A washer and a dryer cost $809 combined. the washer costs $91 less than the dryer. what is the cost of the dryer?

Hi, can anyone show me how to do this problem? 100 points for this. in advance

The multiplicative property of equality states that for real numbers a, b, c, and d, if a = b and c = d, then ac = bd. true false

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.