2 parts for one question. steps please

Contribution margin %=24% If unit selling price is $158 What is variable cost per unit? Round your final answer to the nearest whole dollar. Do not round any intermediate calculations. Suppose that a firm makes two products, A and B. The sales mix in units for the period is 70% for A and 30% for B. If the unit contribttion margin for A is $8.6 and the unit contribution margin for B is $5.71, then the weighted-average unit contribution margin is: (Input your answer using two decimal places. Do not use commas or dollar signs) (Hint: if you are lost on this one, look at Example #9 in the example packet)