Here's how to get there:

1. Move the decimal point: Start with the number 160,000,000. Move the decimal point to the left until you have a number between 1 and 10. In this case, you'll move it eight places to the left, resulting in 1.6.

2. Count the decimal places: You moved the decimal point eight places to the left.

3. Write in scientific notation: The final answer is 1.6 x 10⁸.

The exponent (8) represents the number of places you moved the decimal. Since you moved it to the left, the exponent is positive.