Thaxter D. Reynolds pleaded guilty, pursuant to a plea agreement, to conspiring to distribute and possess intending to distribute cocaine, and he received a 46-month prison sentence. Though he frames the issue on appeal in part as whether the district court erred in denying his motion to dismiss, he focuses his argument exclusively on the drug quantity finding used to calculate his sentence. Because he has failed to brief the issue whether the denial of the motion to dismiss was proper, he has abandoned it. See United States v. Scroggins, 599 F.3d 433, 446-47 (5th Cir. 2010); Fed. R. App. P. 28(a)(8).

Reynolds argues that the district court erred in attributing to him seven ounces of cocaine purchased from a supplier. Reynolds, though, did . not object to the drug quantity determination at sentencing; accordingly, our review is for plain error only. See United States v. Rojas, 812 F.3d 382, 413 (5th Cir. 2016), cert. denied sub nom. Moya-Buitrago v. United States, — U.S. -, 136 S.Ct. 2420, 195 L.Ed.2d 789 (2016), and cert. denied sub nom. Cabalcante v. United States, — U.S. -, 136 S.Ct. 2420, 195 L.Ed.2d 789 (2016), and cert. denied, — U.S. -, 136 S.Ct. 2421, 195 L.Ed,2d 789(2016), and cert, denied sub nom. Pineda v. United States, —[*871] U.S. -, 136 S.Ct. 2423, 195 L.Ed.2d 789 (2016). Factual disputes, such as drug quantity, that the district court could have resolved upon a timely objection at sentencing can never constitute plain error. See United States v. Claiborne, 676 F.3d 434, 438 (5th Cir. 2012); United States v. Pofahl, 990 F.2d 1456, 1479 (5th Cir. 1993). Regardless, Reynolds admitted in the factual basis that he discussed the purchase of these drugs with the supplier “in furtherance of the conspiracy,” and that he packaged previously purchased drugs for resale. Accordingly, the finding was not erroneous. See U.S.S.G. § 1B1.3(a)(1)(B) & comment, (n.3); U.S.S.G. § 2D1.1, comment. (n.5); United States v. Hinojosa, 749 F.3d 407, 415 (5th Cir. 2014); United States v. Lombardi, 138 F.3d 559, 562 (5th Cir. 1998).

AFFIRMED.