Can you help me fix this code for c++ class. Using myprogramminglab

Print Results COMPILER ERROR MESSAGES grade_calculator.cpp: In function 'int main)' grade_ calculator.cpp:16:10: error: exr nott' was not declared in this scope exe no = exr-nott; 1 #include 2 using namespace std 4 int main) int N tot, exr_no, ear, pos, tot _pos, tot ear double ovall perent 8 exr_no0 9tot ear0; 10 tot_pos 0 12 cout > N tot 14 for (N tot >0; N ot- 15 ( 16 exr-no-exr-nott; 17 cout > pos 20 cout