When you flip a biased coin the probability of getting a tail is 0.4. How many times would you expect to get tails if you flip the coin 160 times?

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.