Please answer question 3 and 4 (C++ hw)

3. Consider the following code: (fully functional, no errors) ant sum = 0, n=0; while (n 10) { //Evaluate sum for n-2 here if(n5){ else { sum = sum + 10; a) What's the value of sum at the top of the loop (arrow above) when n- 2? b) What's the final value of sum after the loop finishes? 4. Given the following code segment: double z x / y; The value stored in z is: b) 0.333c) 0 d) 1.0