Chapter 6 Assignment Question 4 of 13 View Policies < -18 E Current Attempt in Progress Sandhill Corporation sells three different models of a mosquito "zapper." Model A12 sells for $60 and has unit variable costs of $42. Model B22 sells for $120 and has unit variable costs of $84. Model C124 sells for $480 and has unit variable costs of $360. The sales mix(as a percentage of total units) of the three models is A12, 60%; B22, 15 %; and C124, 25%. What is the weighted-average unit contribution margin? (Round answer to 2 decimal places, eg. 15.50.) Weighted-Average Unit Contribution Margin $