Cutter Enterprises purchased equipment for $81,000 on January 1, 2021. The equipment is expected to have a five-year life and a residual value of $3,300. Using the sum-of-the-years'- digits method, depreciation for 2022 and book value at December 31, 2022, would be: (Do not round depreclation rate per year) Multiple Choice $21,600 and $29,100 respectively. $21.600 and $32,400 respectively. $20,720 and $31,080 respectively. $20,720 and $34,380 respectively. Granite Enterprises acquired a patent from Southern Research Corporation on January 1, 2021, for $3.8 million. The patent will be used for five years, even though its legal life is 20 years. Rocky Corporation has made a commitment to purchase the patent from Granite for $250,000 at the end of five years. Compute Granite's patent amortization for 2021, assuming the straight- line method is used. Multiple Choice O $355.000 $710.000 $380.000 $760,000