Forever Quilting is a small company that makes
quilting kits priced at $120. The costs of the materials that go into each kit are $45. It costs $5 in labor to assemble a kit. The company has monthly expenses of $1,000 for rent and insurance, $200 for heat and electricity, $500 for advertising, and $4,500 for the monthly salary of its owner. Calculate Forever Quilting's unit variable cost for its kits.