explain these step by step

5x +12y Project 2.2.2. Write and execute a complete program to compute the value of the expression when x = 12 and y = 9.8, and to write the answer on the screen 3 with some descriptive text. The correct answer is approximately 23.2667. When the program works and produces the answer print it, and write the answer you found. Then modify the program to compute the value of the same expression for the values x = 0 and = 9.8. This program will not produce an answer. It will produce an error message during run-time. When the program compiles correctly and produces only a run-time error print the program and write the error message on the print-out. Turn in both print- outs