which African regional. organization is Not mainly focused on socio - economic cooperation and integration​

1)consider the following code snippet: #ifndef book_h#define book_hconst double max_cost = 1000.0; class book{public: book(); book(double new_cost); void set_cost(double new_cost); double get_cost() const; private: double cost; }; double calculate_terms(book bk); #endifwhich of the following is correct? a)the header file is correct as given.b)the definition of max_cost should be removed since header files should not contain constants.c)the definition of book should be removed since header files should not contain class definitions.d)the body of the calculate_terms function should be added to the header file.

Im doing this last minute and literally none of my neighbors or people that my dad works with use excel so if anyone could me make up an example

In cell b18, enter a formula to calculate the amount budgeted for meals. this amount is based on the daily meal allowance and the total travel days (# of nights+1).