please i need this asap

C++ Data Structure

Question 5 1 pts What is the big-O notation of f(n) = 4n 10 + 3n3 + 8n O(n^10) O(1) O(n) O(n^3) O(4n) Page 1 Question 6 4 pts Refer to this header file for the following question: // Fraction class // This class represents a fraction a / b class Fraction { public: // Constructors Fraction(); // sets numerator to 1 and denominator to 1 Fraction(int num, int denom); // Setters void setNumerator(int num); void setDenominator(int denom); // getters int getNumerator(const {return num; } int getDenominator(const {return denom;} double getDecimal(){return static_cast num / denom;} private: int num, denom; }; Write the code for the non-member overloaded