Handy Home sells windows and doors in the ratio of 7: 3 (windows: doors). The selling price of each window is $103 and of each door is $253. The variable cost of a window is $64.00 and of a door is $176.50. Fixed costs are $577, 875. (Enter your "per unit" values in two decimal places.) (1) Determine the selling price per composite unit. (2) Determine the variable costs per composite unit. (3) Determine the break-even point in composite units. (4) Determine the number of units of each product that will be sold at the break-even point