Required

Each of the following independent events requires a year-end adjusting entry. Show how each event and its related adjusting entry affect the accounting equation. Assume a December 31 closing date. The first event is recorded as an example.(Do not round intermediate calculations. Enter any decreases to account balances with a minus sign.)

a.	Paid $7,100 cash in advance on April 1 for a one-year insurance policy.
b.	Received an $16,620 cash advance for a contract to provide services in the future. The contract required a one-year commitment starting September 1.
c.	Purchased $2,150 of supplies on account. At year?s end, $210 of supplies remained on hand.
d.	Paid $5,700 cash in advance on March 1 for a one-year lease on office space.