Jimmy owns a small engine repair business. the revenue, in dollars, can be modeled by the equation y = 420 + 72x, where x is the number of hours spent repairing small engines. the overhead cost, in dollars, can be modeled by the equation y = 24x² + 180 where x is the number of hours spent repairing bikes. after about how many hours does the company break even? note: the phrase break even refers to the value where the two functions are equivalent. 1 h 5 h 2 h 10 h