Requlred Each of the following independent events requires a year-end adjusting entry. Show how oach 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 \& Round your final answers to nearest whole dollar. Enter any decreases to account balonces with a minus sign. Not all cells require input.) a. Paid $6,400 cash in advance on October 1 for a one-year insurance policy. b. Recelved a $5,200 cash advance for a contract to provide services in the future The contract required a one-year commitment. starting April 1 . c. Purchased $2,000 of supplies on account. At year's end. $255 of supplies remained on hand. d. Paid $11,520 cash in advance on August 1 for a one-year lease on office space