Answer:
3.52 × 10⁸
Explanation:
Scientific notation is written in: Number that is in the ones place × 10^power.
Here, the number is 3.52, since 3 has the largest placement.
The power on the 10 should be the number of 0's on 352,000,000/3.52. That is 100,000,000. That number has 8 0's, so the power is to the 8th.
Putting that together, this number in scientific notation in 3.52 × 10⁸.