What would the coordinates of A' and B' be if you were to rotate the line segment AB 90 degrees counter-clockwise around the point (2,-1)

Nick estimated that 5/8+4/7 is about 2.explain how you know his estimate is not reasonable plz and fast i will give 50 points

Give me the equations of two lines that have the same slope but are not parallel.

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.