Help calculating Amortization expense

Exercise 7-11 These are selected 2017 transactions for Blue Corporation: Jan. 1 Purchased a copyright for $79,500. The copyright has a useful life of 5 years and a remaining legal life of 31 years. Mar. 1 Purchased a patent with an estimated useful life of 5 years and a legal life of 21 years for $112,800. Sept. 1 Purchased a small company and recorded goodwill of $150,200. Its useful life is indefinite Indicate the amount of amortization expense on December 31, 2017, for Blue Corporation Amortization expense s LINK TO TEXT