a landscaping company is considering renting a backhoe (a type of excavating equipment) at $12,000 for the season. the variable cost of completing a landscaping project with the use of the backhoe is $500. alternatively, without the use of the backhoe, the company would incur a variable cost of $1,000 per landscaping project and no fixed costs. if the landscaping company plans to complete more than projects, the total cost of landscaping projects will be lower . 12; without the backhoe 24; with the backhoe 44; without the backhoe 18; with the backhoe