Super Print sells two (2) types of printers: Printer G'and Printer R? Printer G' is sold for $350 each while Printer Ris sold for $490 each. It costs $170 to produce one Printer G'and $230 for one Printer R: The total fixed cost for the accounting period is $55,060. Required: (a) What is the weighted-average contribution margin per unit if the sales mix is 3 Printer G': 2 Printer R?? Show workings. Leave two (2) decimal points. (3 marks) (b) What is the break-even point (in units), if the sales mix is 3 Printer G': 2 Printer R?? Show workings. Round up to the nearest unit