Compute the Cost.Edward the entrepreneur takes 2 hours to cut a lawn and he cuts500500lawns per year. He uses solar-powered equipment (truck and mower) that will lastforeverlong dash-andcould be sold at any time for $20,000. Edward could earn $88per hour as a pedicurist. The interest rate is 10 percent.a.Given his current output level, his marginal cost is $nothing (enter your response to the nearest dollar