Urgent please help!:)

Madison Corporation sells three products (M, N, and O) in the following mix: 3:1:2. Unit price and cost data are: Unit sales price Unit variable costs M N 0 $13 $10 $12 9 8 10 Total fixed costs are $342,000. The contribution margin per composite unit for the current sales mix (round to the nearest cent) is: Multiple Choice $35.00 $11.67 $18.00 $73.00 $49.00