Under her cell phone plan, Ava pays a flat cost of $58 per month and $4 per gigabyte. She wants to keep her bill at $62.40 per month. How many gigabytes of data can she use while staying within her budget?

To solve this problem, we need to determine how many gigabytes of data Ava can use while keeping her monthly bill at $62.40.

### Step 1: Set up the equation

Ava pays a flat cost of $58 per month plus $4 per gigabyte (GB) of data. Let $ x $ represent the number of gigabytes she can use. The total cost can be written as:

\[
\text{Total cost} = \text{Flat cost} + \text{Cost per gigabyte} \times \text{Number of gigabytes}
\]

This equation becomes:

\[
62.40 = 58 + 4x
\]

### Step 2: Solve for $ x $

Subtract 58 from both sides of the equation:

\[
62.40 - 58 = 4x
\]

\[
4.40 = 4x
\]

Now, divide both sides by 4:

\[
x = \frac{4.40}{4} = 1.1
\]

### Conclusion

Ava can use **1.1 gigabytes** of data while staying within her budget of $62.40 per month.

Would you like more details or have any questions?

### Related Questions:
1. What would Ava’s bill be if she used 2 gigabytes of data?
2. How much would Ava pay if she used 0.5 gigabytes of data?
3. If Ava's flat cost increased to $60 per month, how much data could she use to keep her bill at $62.40?
4. What would be the total cost if Ava used 5 gigabytes of data?
5. How much would Ava's total bill increase if the cost per gigabyte increased to $5?

### Tip:
When solving budget-related problems, always identify fixed and variable costs separately to set up your equations correctly.

Learn how to calculate the number of gigabytes of data Ava can use while staying within a budget of $62.40. This problem involves solving a linear equation using algebraic concepts, suitable for students in Grades 6-8.

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