Handy Home sells windows and doors in the ratio of 8:2 (windows:doors). 
The selling price of each window is $200 and of each door is $500. 
The variable cost of a window is $125 and of a door is $350. 
Fixed costs are $900,000. 
Required: 
Based on this information, determine: 
a) selling price per composite unit, 
b) variable costs per composite unit, 
c) break-even point in composite units, and 
d) number of units of each product that will be sold at the break-even point.