Answer:
800 would be the answer
Step-by-step explanation:
Since the underlined number is 5, the number to its left would be rounded off.
800 cause for what I know if the number is big (56789) you'll add one on the next number ex.
839 underline 9 so 839 will become 840
yan lang naman mga natandaan ko and i know that my explanation is not clear so yeah
