Your friend, Mark, owns the dog sitting company, Marks Dogs, out of his home. He watches a maximum of 5 dogs at a time at his home, with the dog owners dropping the dogs at his home. Terms of service require payment in cash or check when the owner retrieves the dog.

Marks business has grown, and Mark will be moving into an empty storefront that is large enough for him to watch 20 dogs at a time. Regarding this expansion, he will be moving from a cash-only business to an accrual-based business.

1. Briefly explain to Mark the dual entry system of accounting.
2. Inform Mark as to the new accounts which are created when a business moves from a cash-only to an accrual business.
3. Would the nature of Marks business require any period-end adjustments? If so, which ones?
4. If Mark accepts credit cards, will this be recorded as cash?

250-500 word response total.