Answer:
Entries that should most likely be made by Young Company is DR Accounts Receivable 42,700;CR Notes Receivable 40,000;CR Interest Revenue 2,700
Explanation:
Interest = 40,000 x 0.09 x 9/12 = 2,700 
entry : 
Debit Credit 
Accounts receivable $42,700 
Interest revenue $2700 
Note receivable $40,000