30KiB, 667x633, FB_IMG_1489330025659.jpg View SameGoogleiqdbSauceNAO Anonymous Mon 29 Mar 10:41:44 2021 No.12897436 ViewReplyOriginalReport Quoted By: I am okay in calculus and algebra, but I literally csnnot get my head around probability and combinatorics. Any good materials you would recommend?
