Math Help - Maximize Revenue

The price of an item is given by the equation

where is the number of items demanded. What should the number of items be to maximize the producers total revenue?

Number of items demanded to maximize revenue: ______________________________

Hey spyder12.

Show us what you have tried.

That's the problem. I'm not sure where to start.

Think about revenue in terms of price: If the price of an item is p(x) and you order x items, then what is the revenue as a function of x? Also given r(x) (the revenue), how do you find minimums and maximums for said function?