If necessary, create a new project named ModifyThis18 Project and save it in the Cpp7\Ch...

If necessary, create a new project named ModifyThis18 Project and save it in the Cpp7\Chap12 folder. Enter the C++ instructions shown earlier in Figure 12-13 into a source file named ModifyThis18.cpp. Change the filename in the first comment. Save and then run the program. Jenko Booksellers has opened another store. The store’s sales of paperback and hardcover books are $650.85 and $246.85, respectively. Add the new sales information to the array, and then modify the program appropriately. Save and then run the program.

REFEFENCE: FIGURE 12-13