[The following information applies to the questions displayed below.] The following is the adjusted trial balance of Sierra Company. (1) Prepare an income statement for the year ended December 31. (2) Prepare a statement of owner's equity for the year ended December 31. The L. Sierra, Capital account balance was $18,000 on December 31 of the prior year, and there are no owner investments during the current year. Complete this question by entering your answers in the tabs below