Q. Brenda is a purchasing agent for Commodities Exchange Corporation. Dennis, a Commodities corporate officer, gives Brenda written authority to buy for the organization as many computers and peripheral devices as necessary. The next day, Dennis calls Brenda and tells her to buy only fifty notebook computers and nothing else. Brenda shows the written authority to E-Products, Inc. and enters into a contract with E-Products to buy sixty notebook computers and a selection of printers, scanners and extra storage media. E-Products ship the order to Commodities. Is Commodities liable to E-Products under the contract? Is Brenda liable? In each case, if so, explain why? If not, explain why not?