Please help me answer those questions and post up here in the right way that the answer will not be partially hidden. Thank you!

Bi 2 (chapter 4): At the end of July, 2021, Costco Company has the following information: Total Service Revenues of July = $10,000 Operating expenses of July include: Depreciation expense = $500 Utilities expense = $600 Rent expense = $1,000 Salaries and Wages expenses = $2,400 Interest expense = $400 Dividends = $800 Requirement: a. Prepare closing entries for July 2021 of Costco company b. Prepare Retained earnings statement for July 2021 Additional informatiou: opening balance of Retained earnings account (ou July 1, 2021) is $6,000 ou credit