What is the total cost of all the "Road-650, Red, 60" products that Abraham E. Bennet sold?
total cost = SUM(MULTIPLY(Quantity, Price)); 'Road-650, Red, 60' is name of product;
SELECT SUM(T2.Quantity * T3.Price) FROM Employees AS T1 INNER JOIN Sales AS T2 ON T1.EmployeeID = T2.SalesPersonID INNER JOIN Products AS T3 ON T2.ProductID = T3.ProductID WHERE T1.FirstName = 'Abraham' AND T1.MiddleInitial = 'e' AND T1.LastName = 'Bennet' AND T3.Name = 'Road-650 Red, 60'