I am looking for help with this general accounting question using proper accounting standards.

Fulton and Sons, Inc. presently leases a copy machine under an agreement that calls for a fee each month and a charge for each copy made. Fulton made 7,000 copies and paid a to $360 in March; in May, the firm paid $280 for 5,000 copies. The company uses the high- method to analyze costs. Fulton's variable cost per copy is: A) $0.056 B) $0.051 C) $0.040 D) $0.053 E) None of the answers are correct