The Following Statements Represent Several Independent Situations with an Unknown

The following statements represent several independent situations with an unknown value:
a_Payments for inventory for the current period are $375,000.Accounts payable on January 1 had a balance of $75,000 and a balance of $89,000 on December 31.Determine the amount of merchandise inventory purchased during the year.
b_Purchases of inventory on account during the current year amount to $275,000.Accounts payable on January 1 had a balance of $36,000 and a balance of $25,200 on December 31.Determine the cash payments to suppliers for purchases of inventory during the current period.
c_Accumulated amortization-equipment had a January 1 balance of $20,500 and a December 31 balance of $17,600.During the current period,equipment with a book value of $50,000 and a cost of $76,000,was sold for $47,500.Determine the current period's amortization expense.
d_Equipment (net_had a January 1 balance of $500,000 and a December 31 balance of $450,000.During the year,equipment costing $36,000 was purchased for cash.The income statement reports a loss on sale of equipment of $15,000.There were no other transactions affecting equipment during the year.Determine the cash received from the sale of the equipment.