On December 31, 2017, 100 units' SUHD (super ultra-high definition) TVs are sold for

$2,000 each, totaling $200,000 sales revenue. The cost of each unit for the company is $1,500. The TVs sold are undertwo-year warranty, free of charge. From the data of the company, it is estimated that the warranty will cost the companyon average $100 per unit over the next two years.

(1) Prepares journal entries for the sales and warranty. Assume the sales were for cash.

(2) During 2018, the actual warranty costs were $4,000. Prepares journal entries for the warranty costs.

(3) During 2019, the actual warranty costs were $5,000. Prepares journal entries for the warranty costs.