Intial Setup
wrote comment about what I expense to accomplish with this script.
declared function and gave it name
declared new variable
after declaring variable (monthlySalary) gave it a prompt to ask the user to input its value.
Added description to line 10
declared new variable (rent)
added prompt to variable rent  so user can input its value. Also added description of what is being done on that line.
spell check on line 11
declared new variable.
gave the variable utilities a prompt , so users can input its value. also commented what was being done on line 12
started my if condition.
added equation to if condition
if the condition is true, then this line will be printed in the console of the browser
added comment to what is happening in line 16
posed else if condition
added comment to line 17.
added line 18 which will be printed  in the console if the else if condition is true
added default condition. used for cases that don't fall into the other categories
minor code fixes in lines 10-12