Seth repays a 30-year loan with a payment at the end of each year. Each of the first 20 payments is 1200, and each of the last 10 payments is 900. Interest on the loan is at an annual effective rate of ii, i>0i>0. The interest portion of the 11th payment is twice the interest portion of the 21st payment. Calculate the interest portion of the 21st payment.

Due to rapid employee turnover in the accounting department, the following transactions involving intangible assets were improperly recorded by bridgeport corporation. 1. bridgeport developed a new manufacturing process, incurring research and development costs of $195,600. the company also purchased a patent for $45,200. in early january, bridgeport capitalized $240,800 as the cost of the patents. patent amortization expense of $12,040 was recorded based on a 20-year useful life. 2. on july 1, 2017, bridgeport purchased a small company and as a result recorded goodwill of $52,000. bridgeport recorded a half-year’s amortization in 2017, based on a 20-year life ($1,300 amortization). the goodwill has an indefinite life. prepare all journal entries necessary to correct any errors made during 2017. assume the books have not yet been closed for 2017.