Cooks had 13 points in the first half when Furman shot 57 percent (21 of 37) and raced to a 52-32 lead. A 13-2 run, with six different players scoring, had the Eagles up 19-7 barely seven minutes into the game. Furman only made 2 of its first 10 shots.
Furman made six straight free throws to end an early 9-1 surge in the second half but that only cut the deficit to 16 and the Paladins never challenged, shooting only 37 percent for the game (22 of 60) and going 5 of 24 behind the arc.
Mannion, who recently reclassified and is ESPN's No.11 overall player in the class of 2019, chose Arizona over Marquette.
He'll fit in with Sean Miller's plans for a faster tempo on offense.
The cream of the crop of American high school basketball will congregate in Colorado Springs from Oct. 5-7, as USA Basketball unveils its newly expanded Junior National Team minicamp in collaboration with the NBA, NCAA and NBPA.