For each of the following situation, solve for a missing amount. In each case, there is only one debit entry and one credit entry in the account during the month. Requirement 1: a. Accounts Receivable had a balance of $960 at the beginning of the month and $720 at the end of the month. Credit sales totaled $9,600 during the month. Calculate the cash collected from customers during the month, assuming that all sales were made on account. b. The Supplies account had a balance of $432 at the beginning of the month and $584 at the end of the month. The cost of supplies used during the month was $1,872. Calculate the cost of supplies purchased during the month. c. Wages Payable had a balance of $328 at the beginning of the month. During the month, $3,040 of wages were paid to employees. Wages Expense accrued during the month totaled $3,280. Calculate the balance of Wages Payable at the end of the month. Requirement 2: Prepare the journal entries for the above transactions.