To determine which of Luis's expenses are variable, we need to identify the expenses that change from month to month. Let's start by examining each expense:
1. Rent:
- January: \[tex]$1,250.00
- February: \$[/tex]1,250.00
- March: \[tex]$1,250.00
- Observation: The rent amount is consistent across all three months.
2. Utility bill:
- January: \$[/tex]124.11
- February: \[tex]$108.72
- March: \$[/tex]121.69
- Observation: The utility bill varies each month.
3. Car loan payment:
- January: \[tex]$384.00
- February: \$[/tex]384.00
- March: \[tex]$384.00
- Observation: The car loan payment is the same every month.
4. Insurance payment:
- January: \$[/tex]97.18
- February: \[tex]$97.18
- March: \$[/tex]97.18
- Observation: The insurance payment does not change month to month.
5. Groceries:
- January: \[tex]$315.43
- February: \$[/tex]367.25
- March: \[tex]$341.04
- Observation: The grocery expense fluctuates each month.
6. Clothing:
- January: \$[/tex]72.18
- February: \[tex]$152.74
- March: \$[/tex]0.00
- Observation: The clothing expense changes significantly and is not consistent.
7. Fuel:
- January: \[tex]$108.71
- February: \$[/tex]117.46
- March: \$127.34
- Observation: The fuel cost varies each month.
Summarizing the observations, the expenses that remain the same (fixed expenses) are:
- Rent
- Car loan payment
- Insurance payment
The expenses that vary each month (variable expenses) are:
- Utility bill
- Groceries
- Clothing
- Fuel
Therefore, Luis's variable expenses are:
[tex]\[
\boxed{\text{utility bill, groceries, clothing, fuel}}
\][/tex]
