Answer:
$117
Explanation:
The computation of the interest revenue is shown below:
= Note receivable amount × rate of interest × number of months ÷ (total number of months in a year)
= $3,900 × 9% × (4 months ÷ 12 months)
= $117
The 4 months are from 1 September 2021 to 31 December 2021 It is assumed that the books will be closed on 31 December 2021