Feet-First industries plans to sell 7.750 sleds at 360 each in the comingyear. Variable cost is 60 percemt of the sales price. Fxied factory overhead ecual5 544.540 and fixed selling and administrative expense equals $34,780. a. Calculate the units that Feet. First must sell in order to break ever. b. Calculate the sales revenue that feet. first must earn to break even ty using the contribution ritargin c. Confirm your answer in requirement by by muliplyng the number of break-even units in requirement a by the unit sales price