Answer:
The answer is 3.72 × 10²
Explanation:
First, move the decimal to the left until there is only one number before it.
371.8 ----> 3.718
While moving the decimal, count how many spaces it moved.
371.8 ---> 37.18 (1) ---> 3.718 (2), so the decimal moved 2 spaces left.
The 2 spaces is where you get the exponent after the 10.
3.718 × 10²
Finally, round to the nearest hundredth so there are only 2 digits after the decimal.
3.72 × 10²
I hope this helps! :)