[The following information applies to the questions displayed below.] Martinez Company's relevant range of production is 8,500 units to 13,500 units. When it produces and sells 11,000 units, its unit costs are as follows: Amount Per Unit Direct materials $5.40 Direct labour $2.90 Variable manufacturing overhead $1.60 Fixed manufacturing overhead $3.40 Fixed selling expense $2.40 Fixed administrative expense $2.10 Sales commissions $1.10 Variable administrative expense $0.55 3. If 9,000 units are sold, what is the variable cost per unit sold? (Round your answer to 2 decimal places.) Variable cost per unit sold