$4.$ Megan Rubber and Tire Company sells passenger car tires and uses a perpetual inventory system. On August $31,$ it purchased $$45,000$ worth of tires $($from Louisiana Tire Sales$)$ and the terms were $2/10$ n $30.$ Prepare the appropriate journal to record the purchase of these tires for Megan Rubber and Tire Company.

$5.$ Assume the facts in problem $4.$ Megan paid the invoice on September $2.$ Prepare the appropriate journal entry for Megan.