Associated Press CHAPEL HILL— Armando Bacot recorded his 16th double-double of the season, scoring 18 points and grabbing 13 rebounds, and North Carolina beat North Carolina State 100-80 on Saturday. It was the fourth game in eight days for the Tar Heels (15-6, 7-3 ACC) who have won three straight. The Tar Heels never trailed in a contest in which the members of the 1981-82 national championship team were honored. North Carolina put up a season-high 56 points before halftime on the strength of 10-for-15 shooting from 3-point range and finished 15 for 27 from behind the arc. Brady Manek led the…