Willow Creek Company purchased and installed carpet in its new general offices on May 30 for a total cost of $13,440. The carpet is estimated to have a 14-year useful life and no residual value. a. Prepare the journal entry necessary for recording the purchase of the new carpet. If an amount box does not require an entry, leave it blank. May 30 b. Record the December 31 adjusting entry for the partial-year depreciation expense for the carpet, assuming that Willow Creek uses the straight-line method. If an amount box does not require an entry, leave it blank. Do not round intermediate calculations. Dec. 31