The following transactions occurred during 2020. Assume that depreciation of10% per year is charged on all machinery and5% per year on buildings, on a straight-line basis, with no estimated salvage value. Depreciation is charged for a full year on all fixed assets acquired during the year, and no depreciation is charged on fixed assets disposed of during the year.

Jan.30A building that cost $158,400in 2003 is torn down to make room for a new building. The wrecking contractor was paid $6,120and was permitted to keep all materials salvaged.Mar.10Machinery that was purchased in 2013 for $19,200is sold for $3,480cash, f.o.b. purchaser's plant. Freight of $360is paid on the sale of this machinery.Mar.20A gear breaks on a machine that cost $10,800in 2012. The gear is replaced at a cost of $2,400. The replacement does not extend the useful life of the machine but does make the machine more efficient.May18A special base installed for a machine in 2014 when the machine was purchased has to be replaced at a cost of $6,600because of defective workmanship on the original base. The cost of the machinery was $17,040in 2014. The cost of the base was $4,200, and this amount was charged to the Machinery account in 2014.June23One of the buildings is repainted at a cost of $8,280. It had not been painted since it was constructed in 2016.

Prepare general journal entries for the transactions.