CHALLENGE ACTIVITY 2.6.2: Writing math calculations. Jump to level 1 Compute: z= 7 000 1 #include 2 #include 3 #include 4 #include 5 using namespace std; 6 7 int main() { double x; 9 double y; 10 double z; 11 12 cin >> X; 13 cin >> Y; 14 15 V your code goes here / 16 17 cout