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What is the area of the trapezoid shown ?

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9

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.