/* no std::cout here */<<projected_sales<< "in revenue this year" << endl;
You shouldn't trust the compiler to exactly tell you what the problem is. An important part of programming is learning to correctly interpret error messages.
did you miss "cout" here
...
cout<< "The east coast division will generate:" << endl;
(cout) <<projected_sales<< "in revenue this year" << endl;
return 0;
}
...