Hello,
I want to know IB score requirements of us universities for admissions of 2021?
They don’t have specific IB requirements you don’t have to get a specific score. For top unis (Ivy League and such) they generally accept people with scores of 40+ but I would assume anything above a 35 would be considered good for a lot of unis. IB is generally considered to be a very rigorous course in the US so they respect the grading system. If you want to find about more go onto the university website and see what scores they would assign course credit for. For example if you find the uni offers course credit in French for example if you got a 6’s or 7’s in French SL you can probably reasonably assume they want a mixture of 6’s and 7’s on your transcript.