Answer:
$5,450.
Step-by-step explanation:
Payment of Interest expenses = $15,000 * 3% = $450
Principal repayment = $5,000
Total cash payment on March 1, 2019 = $5,000 + $450 = $5,450.
Therefore, the amount of total cash payment that Mandy will make on March 1, 2019 is $5,450.