Evaluate 5x2-4 when x=3.

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

Write and solve a real word problem that involves determining distance on a coordinate plane

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.