Malik asks Petra, an expert in sports collectibles, to help him find a buyer for his collection of autographed baseballs. Petra finds a buyer who is willing to pay $5,000 for the collection, but Malik scoffs at the offer and insists it is worth at least double that amount. He says he would not even consider selling for less than $7,500. The next week, someone offers to pay $1,000 for the collection. Must Petra tell Malik about the offer?