14. See cpp file.

15.

3 * x

(3 * x) + y

(x + y)/7

((3 * x) + y)/(z + 2)

16. bcbc

17. (1/3) * 3 is equal to 0

18. See cpp file.

19. a. f is assigned 1
b. 9/5 to C++ is division by two integers which is 9/5=1 (remainder is dropped). Programmer wanted to divide two doubles which is 9.0/5.0.
c. Fixed code:

double c = 20;

double f;

f = (9.0/5.0) * c + 32.0;

20. 030406

28. 10 7 4 1

29. No output.

30. 10 7 4 1

31. -42

32. While statement will execute only if condition is true. Do-while statement will always execute once then condition is checked.

33. infinite loop, i can't type that many numbers in my lifeimte!