John is selling hand made shirts on Amazon. The shirts are c…

Jоhn is selling hаnd mаde shirts оn Amаzоn. The shirts are currently priced at $20/shirt. John is not happy with her current revenue stream and asks Brad for advice. Brad estimates that the demand John's shirts is: Q = 1000 - 10P (P = 100 - 0.1Q). If John is looking to maximize revenue, what should Brad's recommendation be?