Schwiesow Corporation has provided the following information: Direct materials Direct labor Variable manufacturing overhead Fixed manufacturing overhead Sales commissions Variable administrative expense Fixed selling and administrative expense Cost Cost per per Period Unit $7.05 $3.50 $1.65 $11,000 $1.00 $0.40 $ 5,500 If the selling price is $18.70 per unit, the contribution margin per unit sold is closest to: Multiple Choice o $1.80 o 0 $5.10 $5.10 o 0 $8.15 $8.15 o o $4.30 Rhome Corporation's relevant range of activity is 2,000 units to 6,000 units. When it produces and sells 4,000 units, its average costs per unit are as follows: Direct materials Direct labor Variable manufacturing overhead Fixed manufacturing overhead Fixed selling expense Fixed administrative expense Sales commissions Variable administrative expense Average Cost per Unit $ 5.40 $ 3.55 $ 1.70 $ 3.00 $ 0.60 $ 0.40 $ 1.00 $ 0.40 If 5,000 units are produced, the total amount of fixed manufacturing cost incurred is closest to: $12,000 $18,000 $13,500 $15,000