Ahmed & co. makes and sells two types of shoes, plain and fancy. data concerning these products are as follows: unit selling price: plain - $ 20.00, fancy - $ 35.00 variable cost per unit: plain - 12.00, fancy - 24.50 sixty percent of the unit sales are plain, and annual fixed expenses are $45,000. 1) the weighted-average unit contribution margin is: (round intermediate calculations and final answer to 2 decimal places):
a) $6.60.
b) $2.40.
c) $14.60.
d) $6.85.
e) an amount other than those above.

2) assuming that the sales mix remains constant, the total number of units that jamal must sell to break even is: (round intermediate calculations to 2 decimal places and final answer to a nearest whole number):
a) 4,147.
b) 6,500.
c) 3,932.
d) 6,237
e) an amount other than those above.