Business Decision Case James Alvarez, an engineer, needs some accounting advice. In their spare time during the past year, Alvarez and his college-aged son, Robert, have manufactured a small weed-trimming sickle in a rented building near their home. Robert, who has had one accounting course in college, keeps the books. Alvarez is pleased about the results of their first year's operations. He asks you to look over the following income report prepared by Robert before they leave on a well-deserved vacation to Hawaii, after which they plan to expand their business significantly