Exercise 3 - Due at 11:59:00 PM EDT on 09/02/2021

You may solve all the problems in the same program.

1.  Declare an integer constant with the value 12. Then declare another integer variable. Prompt the user to enter a value and read in the value from the user. The print the sum of the 2 values.

2. Write a C++ program to read in 5 integer values from the user. If the veriables were, in order, named a, b, c, d and e, calculate and print the result of the expression a - b / c + d * e 

3. Write a C++ program to print the following numbers in the given format.
a. 436.234509876 rounded to 4 decimal places, in scientific notation.
b. 12.0 with the decimal point 
c. 1.694873572548555e-19 in fixed notation rounded to 8 decimal places


Sample Run:
Enter a number: 27

The sum is 39

Please enter 5 values:
10
19
4
6
5
The result is 36

The numbers are:
4.3623e+2
12.0
0.00000000