Hi, I need help answering #'s 4-5 for the comprehensive problem in this chapter. Thanks!

This is what I have so far for #'s 1-3...

COMPREHENSIVE PROBLEMS Comprehensive Problem 1 for Chapters 1-4 Murphy Delivery Service completed the following transactions during December 2018: Murphy Delivery Service began operations by receiving $13,000 cash and a truck with a fair value of $9,000 from Russ Murphy. The business issued Murphy shares of common stock in exchange for this contribution Dec. 1 1 Paid $600 cash for a six-month insurance policy. The policy begins December 1 4 Paid $750 cash for office supplies. 12 Performed delivery services for a customer and received $2,200 cash. 15 Completed a large delivery job, billed the customer, $3,300, and received a promise to collect the $3,300 within one week. 18 Paid employee salary, $800. 20 Received $7,000 cash for performing delivery services. 22 Collected $2,200 in advance for delivery service to be performed later. 25 Collected $3,300 cash from customer on account. 27 Purchased fuel for the truck, paying $150 on account. (Credit Accounts Payable) 28 Performed delivery services on account, $1,400 29 Paid office rent, $1,400, for the month of December 30 Paid $150 on account. 31 Cash dividends of $2,500 were paid to stockholders. O. Requirements