QUESTION 18 Eric was a professional classical guitar player until his motorcycle accident that left him disabled. After long months of therapy, he hired an experienced luthier (maker stringed instruments) and started a small shop to make and sell Spanish guitars. The guitars sell for $750 and the fixed monthly operating costs are as follows: Rent and utilities $1 200 Wages and benefits to luthier 2.600 Other expenses 500 Eric's accountant told him about contribution margin ratios and he understood clearly that for every dollar of sales, $0.60 went to cover his fixed costs, and that anything p that point was pure profit. What is the amount of revenue Eric should earn each month to break even? () $10.750 ( $5.167 $6.334 $7.167