I can't help you with the buck part because you didn't tell me what his number was, but I can help you with the rest.
The reason why Nick was wrong was that he rounded to the nearest tenth instead of rounding to the hundredth.
The way you actually round to the nearest hundred, if you look at the number in the tens place and it's 0, 1, 2, 3, or 4 you round down to 700. If the number in the tens is 5, 6, 7, 8, or 9, you round up to 800.
Using those steps, you could conclude that 751 rounded to the nearest hundredth is 800.
I hope this helps you! If it does, please rate as Brainliest :D
