Please answer the following question by examining steps C and D to correct the incorrect answers (marked by RED x) if you could also go through steps a and b and tell my why those are wrong i would appreciate that. I will also include the links to where these answers came from if it may be helpful to you,

https://www.chegg.com/homework-help/questions-and-answers/please-answering-following-question-completeing-steps-b-posting-general-ledger-filling-t-a-

https://www.chegg.com/homework-help/questions-and-answers/please-answer-following-questions-completeing-steps-c-d-preparing-unadjusted-trial-balance-q28397169

Again, please correct any incorrect answers indicated by the Red x.

Transaction Entries, Posting, Trial Balance, and Adjusting Entries Mark Ladd opened Ladd Roofing Service on April 1. Transactions for April are as follows 1 Ladd contributed his personal funds in exchange for common stock to begin the business $13,500 6,100 3,100 2 Purchased a used truck for cash 3 Purchased ladders and other equipment for a total of Paid cash of $1,000, with the balance due in 30 days 4 Paid two-year premium on liability insurance 5 Purchased supplies on account 6 Received an advance payment from a customer for 3,000 1,200 roof repair work to be done in April and May 7 Billed customers for roofing services 8 Collected on account from customers. 9 Paid bill for truck fuel used in April 10 Paid April newspaper advertising 11 Paid assistants' wages 12 Billed customers for roofing services 1,800 5,500 6,500 75 100 4,500 5,000 Required a. Set up a general ledger with the following accounts: Cash; Accounts Receivable; Supplies; Prepaid Insurance; Trucks; Accumulated Depreciation-Trucks; Equipment; Accumulated Depreciation-Equipment; Accounts Payable; Unearned Roofing Fees; Common Stock; Roofing Fees Earned; Fuel Expense; Advertising Expense; Wages Expense; Insurance Expense; Supplies Expense; Depreciation Expense-Trucks; and Depreciation Expense-Equipment