Blake has entered a mountain bike competition at starvation flats bike park. placement in the competition is determined by a person's average speed over four laps around the course. the course itself is of a mile long. if blake completed the four laps in 12 minutes, then his average speed around the track is miles per hour.

the sentence that avoid faulty coordination is:

culture, which is well represented in philadelphia, plays a major role including theatre, music, and the visual arts.  

faulty coordination occurs when the writer gives equal importance two different ideas (clauses) which in fact are not equivalent. in order to correct a misplaced clause or idea, the writer can place less important or emphatic ideas in a relative clause as in the previous sentence.