Final answer:
Valley Spa would owe $8,856 if the promissory note is dishonored.
Step-by-step explanation:
In this scenario, Valley Spa purchased plumbing components from Tubman Company and signed a 45-day, 8% promissory note for $8,200. The amount due on the note if it is dishonored can be calculated using the formula:
Amount Due = Principal + (Principal * Interest Rate)
Plugging in the values, Amount Due = $8,200 + ($8,200 * 0.08) = $8,200 + $656 = $8,856.
Therefore, the correct answer is $8,856 (option e).