Answer :

38.9 when a decimal number is wanted to be rounded, the first thing we need to see is if the next number is higher than 5, if that number is no higher, you just leave the previous number. 
kschifano2020
39
or 
3900, but it is better if you have no zeros!
All i did was see what number is after the decimal point, which is 8, and changed the number 8, in front of the decimal, into a nine because the number after the decimal point is higher than 5 (also if it is five, but in this case it is not). If the number after the decimal point is less than 5 (or not five), the numbers before the decimal point stays the same. Therefore, it would be 38. (3800) Since the number after the decimal point is bigger than five, your answer is 39.