Tom is working with a layer on a graphic design project, and he wants to add a mask for the entire layer. What should he first ensure? ОА
that no part of the image is changed, by using a Lock switch
OB.
that some part of the image is revealed, by choosing Select
O c. that no part of the image is selected, by choosing Deselect
O. D.
that some part of the image is darkened, by using the Burn tool
OE.
that some part of the image is made lighter, by using the Dodge tool

Reading characters and strings from the keyboard: consider the following c++ program 1. #include 2. #include 3. using namespace std; 4. mystring1 5. 6. int main() 7. { 8. 9. string mystring1, mystring2; mychar1 10. 11. 12. char mychar1, mychar2; 13. 14. cout< < "enter a string: "; mychar2 15. 16. cin> > mystring1; // 17. cin.get(mychar1); 18. cin> > mychar2; 19. getline(cin,mystring2); mystring2 20. 21. 22. cout<

Under which key category do the page up and page down keys fall? page up and page down keys fall under the keys category.

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.