You are a manager at an aquaponics company and are shopping online for a new pump. Site A sells the pump you need for $5,200.50 and offers a $25.00 discount plus free shipping on all orders of $5,000.00 or more. Site B sells the same pump for 4,800.00 plus $75.00 shipping. They also offer a discount of $20.00 on orders of $5,000.00 or more. Which site has the better deal, and how much will you save by ordering your pump there