The Shins Company incurred the following total costs for the volumes of units sold shown: From these total costs and volumes of units sold information, we can conclude that all of the following statements are correct. except: Rent and insurance expenses are fixed costs Salaries expense is a mixed cost. Cost of goods sold is a variable cost Supplies expense is a mixed cost. Bon Jovi Company sells motorcycles. Each motarcycle sells for $10,000 and has total variable costs per unit of $6,000. Bon Jovi's fixed costs per unit are $1,000 at an annual sales volume of 5,000 units. What is Bon Jovi's contribution margin percentage and what will be the increase in Bon Jovi's operating income if it increases its sales by 1,000 units? 60%; and $6.000.000 40%; and $4,000,000 30%; and $3,000,000 40%; and unable to determine