Consider the binary number 1100.a) If you add a zero to the left of the number (01100) does the value of the binary number change? Explain why or why not

with complete explanations

4. what is the reason for including the following code snippet in the header file animal. h? #ifndef animal_h #define animal_h class animal { public: animal(); animal(double new_area_hunt); void birth(); void hunt(double new_area_hunt); void death(); double get_area_hunt() const; private: double area_hunt; }; #endif