I'll begin by inserting comment 7 on the line below the open curly brace:
//7. line declares and sets two variables to represent two different salaries
Now, in C#, when the data type of a variable is the same as the data type of another variable, you can put them on the same line, as shown here:
//7. line declares and sets two variables to represent two different salaries
decimal salaryOne = 25000, salaryTwo = 65000;
Now type decimal, which is a good data type for storing monetary values. Then you can enter salaryOne, which is equal to some value, say 25000. Put a comma and then you don't have to type decimal again: you can simply enter salaryTwo and set that equal to 65000. So, when the data type is the same, you write it once and then make a list of variable assignments on the rest of the line.
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