Q: Convert each of the following mathematical formulas to c++
1,     3x  
2,       3x+y
3,        x+y/7
4,          3x+y/z+2

Q:   what is the output of the following code :
a="b";
b="c";
c=a;
cout<<a<<b<<c<<"c";

Q:   given the following fragments that purpose to convert from degree celsius to degree farenheit.