shipments to $20$ customers in the Dallas area. Each customer's order weighs, on average, $1,500$ pounds. A direct truck shipment from Minneapolis to Dallas costs $$1,800.$ The maximum load per truck is $40,000$ pounds.

a$.()$ How high would the warehousing cost $($currently $$75$ per hundred$-$weight$)$ have to be before break$-$bulk warehousing is no more attractive than direct shipments? Round your answer to the nearest dollar.