Question: The output of the above code is: 8#include using namespace std; void twice(int& x); int main() int a = 20; twice(a) system(pause); return e void

The output of the above code is: 8#include using namespace std;

The output of the above code is: 8#include using namespace std; void twice(int& x); int main() int a = 20; twice(a) system("pause"); return e void twice(int& x) x = 2 * x; x=2*x; The output of the above code is 9. #include #include using namespace std; int main0 float bmi: ifstream inFile inFile.open("bmi.txt"); while (!inFile.cofo) inFile>> bmi; if( bmi

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