Please help with a, b and c. Thank you!!!

2) Haider Malik a catering service called International Catering. During the first month of operations, October 2020, the business completed the following selected transactions: a. Record the transactions in the journal. b. Post to ledger by using the following accounts: Cash (1100), Accounts Receivable (1300), Supplies (1500), Food Service Equipment (1600), Food Truck (1700), Accounts Payable (2100), Capital (3100), Service Revenue (4100), Salaries Expense (5800). c. Prepare the unadjusted trial balance of International Catering at October 31, 2020