Please explain how the following entries are calculated:

2. Fish Company had the following transactions during the year 2015. Intexp. 16 2 4 N a. On April 1, Fish rented excess office space in one of its buildings and received $90,000. The rental period extends for ten months starting April 1. Ni b. On June 1, Fish paid $20,000 for a 2-year insurance policy. Coverage begins on June 1. Required: 1. Journalize the above transactions. 2. Prepare any adjusting entries necessary for the year ended December 31, 2015. Date Account Debit Credit a. Cash 90 0 Uhearned Rest Revenue 90 ON b. prepaid Ins . Exp 20 ow Cash 20, 800 12/31a. Unearned lent Revenue Rent Revenue b. insurance Expense 583 3 3 3 prepaid Ins. Expense 58 33 33