1. Move the decimal point: Start with the decimal point at the end of the number (30,500,000.). Move the decimal point to the left until you have a number between 1 and 10. In this case, you'll move it 7 places to the left, giving you 3.05.

2. Count the moves: You moved the decimal 7 places.

3. Write the number in scientific notation: The number in scientific notation is:

3.05 x 10⁷

Explanation:

* 3.05 is the number between 1 and 10.

* 10⁷ represents the number of places you moved the decimal point.

Let me know if you want to try converting other numbers to scientific notation!