Recognition Criteria Under generally accepted accounting principles, revenue is included in the income statement in the period in which it is earned. For each of the following, determine the amount of revenue that should be reported by Gross Corporation during 2001, if any:

a. Cash sales totaled $500,000, and sales on account to customers totaled $350,000.

b. Payment of $120,000 was received on June 30, 2001, from a customer for monthly cleaning services to be provided over the next 24 months. Gross provided the services stipulated in the contract starting July 1, 2001.

c. Cleaning services provided to Lint Company in December 2001 were not billed to Lint until early January 2002. The amount billed in January was $7,000.

d. On December 1, 2001, Gross received $18,000 payment for cleaning services to be provided from January to June 2002.

e. Payment in the amount of $22,000 was received in January 2001 for cleaning services performed in 2000.