Chapter P - Preliminary Concepts - P.2 - Statement and Reasoning - Exercises P.2 - Page 15: 55

A) TRUE B) TRUE

A) We know that Q is false, so P and Q yields false. The next option is not R, which is not False. Not false is the same as true. Thus, the overall statement is true. B) We start with P or Q. Since P is true, this yields true. We are then given not R, which is not false, which is true. Since these are connected by an and, we get true and true, which yields true.