What is the average of 100, 54 and 88?

What is the difference between regular convex and concave polygons

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

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.