Antonio's Car Services provides maintenance services for motorized vehicles. In March 2018, Rick placed an order for a new set of tires for $350. When a customer purchases goods or services in excess of $300, Antonio's gives the customer a 25% discount coupon for future purchases made in the next three months. Antonio's estimates that approximately 80% of customers utilize the coupon and that on average those customers will purchase goods or services that typically sell for $75.

Required:

(a) How many performance obligations are in Rick's contract? Explain the reasons for your answer.

(b) Prepare a journal entry to record revenue for this transaction, assuming that Antonio's uses the residual method to estimate the stand-alone selling price of new tires sold without the discount coupon.