Shows rigor but you already have plenty of rigor. Make sure you do well on them. Are they fluff classes or rigorous ones? Frankly, AOs see fluff classes as GPA boosters and those will do you no favors. But if you have exhausted, say for example, math classes at your HS and take Calc 3 and Diff equations, those would be considered as legitimately rigorous courses.
Also, depending on the school, CC classes may or may not transfer. Here in NC, they transfer but you do not get credit and they show up as P/F.