Answer:
The money Alex has left over at the end of the week is ( x - $15).
Step-by-step explanation:
The total lunch allowance of a week = $x
The money spent on lunch every weekday = $3
Number of weekdays in a week = 5 days
Now, the total money spend in 5 weekdays
= 5 x ( Money spend in 1 weekday) = 5 ( $3) = $15
So, in a week she spends $15 in a week.
Total amount Left = Total Money - Money Spent = x - $15
Hence, the money Alex has left over at the end of the week is ( x - $15).
