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To calculate the total monthly cost for gas and insurance, let's break down the problem:

1. **Gasoline cost**:
   - The weekly cost for gas is $50.
   - There are approximately 4.33 weeks in a month (52 weeks / 12 months).
   - So, the monthly gasoline cost is:
     \[
     50 \times 4.33 = 216.5
     \]
     Rounding to the nearest dollar, the monthly gas cost is **$217**.

2. **Insurance cost**:
   - The monthly insurance cost is already given as **$130**.

Now, to find the total monthly cost:
\[
217 \, \text{(gas)} + 130 \, \text{(insurance)} = 347
\]
Thus, the total monthly cost is **$347**.

Therefore, the correct answer to select is **$347**.

Would you like any further details or clarifications?

Here are some additional questions that may interest you:
1. How can you calculate the weekly cost from a given monthly cost?
2. Why do we use 4.33 weeks per month instead of 4?
3. How can insurance rates vary monthly and affect a budget?
4. How would your answer change if the gas cost varied weekly?
5. What would the cost look like on a yearly basis?

**Tip**: When estimating monthly costs from weekly values, remember to account for the fact that months don’t all have exactly four weeks. Use 4.33 weeks/month for better accuracy.

What is the total monthly cost for the above auto-related costs? Round to the nearest dollar.

Learn how to calculate the total monthly cost of driving, including gas and insurance. This problem breaks down weekly and monthly costs, applying multiplication and rounding concepts. Ideal for students in Grades 6-8.

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