Question 1 #include using namespace std; int main(){ int n, i=0; return 0; } Question 2 #include using namespace std; int main(){ int n; cout << "The mark you have entered is << n << endl; return 0; } Question 3 #include using namespace std; int main(){ int n, i=1, c, sum=____; cout << "Sum = " << sum << endl; return 0; } Question 4 --------------------------------------------------------------------------------- Important remarks: #include // include the math library sqrt(d) // return square root of d --------------------------------------------------------------------------------- #include #include using namespace std; int main(){ int a, b, c, d, cont, r1, r2; do{ cout << "Solving quadratic equation: ax^2+bx+c=0" << endl; // input a with validation (do-while) // input b // input c // calculate delta d // output result for d<0, d=0 or d>0 respectively // input continue? }while(____); return 0; } Question 5 #include int main(){ // assume all numbers entered are between 0 to 100 int i=___,n,sum=___,largest=___, smallest=____; do{ // validate the input number to ensure that it is a positive number // find current total, current largest and smallest number }while(____); // print result return 0; } Question 6 #include #include int main(){ string name; int income, marital, parent,child,net,tax, more; do{ // input names (done for you) // input income with validation // input marital status with validation // input number of children with validation // input dependent parents with validation // calculate net chargeable income // calculate tax based on net chargeable income // output result do{ cout << "Any more (yes=1/no=0)? "; cin >> more; }while(_______); }while(______________); return 0; }