Ahmed & Co. makes and sells two types of shoes, Plain and Fancy. Data concerning these products are as follows: Unit selling price Variable cost per unit Plain $25.00 13.00 Fancy $33.00 24.00 Sixty percent of the unit sales are Plain, and annual fixed expenses are $81,000. The weighted-average unit contribution margin is: (Round intermediate calculations and final answer to 2 decimal places) - Multiple Choice (2 daun $6.60. $10.80. Snos. $18.80. None of the answers is correct