Answer:
456 Gallons
Step-by-step explanation:
The Optimal order quantity can be found using the following formula:
Economic Order Quantity = Sqrt (2* Annual Demand * Ordering cost per order / Holding cost per unit per year)
EOQ= SquareRoot (2 * 50000 Gallons * $150 per order/ 0.48 Holding costs)
Economic Order Quantity = 456 Gallons