b. Sentry operates several small buses that take commuters from suburban communities to the central downtown area of Atlanta. The commuters purchase, in advance, tickets for 50 one-way rides. Each 50 -ride ticket costs $500. At the time of purchase, Sentry credits the cash received to unearned revenue, At year end, Sentry determines that 10,400 one-way rides have been taken. Dec. 31 c. Sentry operates several buses that provide transportation for the clients of a social service agency in Atlanta. Sentry bills the agency in advance at the end of January, April, July, and October for the service to be performed over the next 3 months. The contract price is $9,000 for each 3 -month period. Sentry properly recognizes revenue in the period in which the service is performed Dec. 31 b. Sentry operates several small buses that take commuters from suburban communities to the central downtown area of Atlanta. The commutors purchase, in advance, tickets for 50 one-way rides. Each 50 -ride ticket costs $500. At the time of purchase, Sentry credits the cash received to uneamed revenue. At year end, Sentry determines that 10,400 one-way rides have been taken. Dec: 31 c. Sentry operates several buses that provide transportation for the clients of a social service agency in Atianta. Sentry bills the agency in advance at the end of January. April, July, and October for the service to be performed over the next 3 months. The contract price is $9,000 for each 3 -month period. Sentry properly recognizes revenue in the period in which the service is performed. Dec. 31 d. On December 23, Delta Airlines chartered a bus to transport its marketing group to a meeting at a resort in southern Georgia. The meeting will be held daring the last week in Jenuary, and Deita agrees to pay for the entire trip on the day the bus departs. At year end, none of these arrangements have been recorded by Sertry. Dec, 31 2. Conceptual Connection: What would be the effect on revenue if the adjusting entries were not made? by $