CHARLOTTE, N.C. — Will Richard scored 22 points, Alijah Martin added 19 points and No. 7 Florida held off a furious second-half rally by North Carolina to remain unbeaten with a 90-84 victory Tuesday night in the Jumpman Invitational. R.J. Davis had 29 points and eight rebounds for the Tar Heels (6-5), who battled back from a 17-point first-half deficit to take a four-point lead late in the second half. Orlando’s Denzel Aberdeen, who came off the bench to shoot 5 of 6 for 12 points Tuesday, goes to the rim vs.