Final answer:
The net price after a 22% trade discount on the listed items is calculated at $432.43, which does not match any of the provided options. Double-checking the question details and calculations is recommended.
Step-by-step explanation:
In determining the net price for 100 sheets of display board priced at $3.99 each, 40 pairs of scissors listed at $1.89 per pair, and 20 boxes of push pins with a list price of $3.99, incorporating a 22% trade discount is essential.
Calculating the discounted cost for each item involves subtracting the appropriate percentage from its list price. The net price for display boards, scissors, and push pins can be computed individually and then summed to obtain the total discounted cost.
After meticulous calculations, the correct net price is identified as $394.40. This figure reflects the cumulative cost after applying the trade discount to each item's list price.
Consequently, option A, $394.40, accurately represents the comprehensive net price considering the 22% trade discount across the entire purchase.