
Answer:
12 combos
Step-by-step explanation:
She can make about…combination
this is because:
pink shirt- pink skirt 1
pink shirt - black skirt 2
pink shirt - white skirt 3
pink shirt - red skirt 4
red shirt - pink skirt
red shirt - black skirt
red shirt - white skirt
red shirt - red skirt
white shirt - pink skirt
white shirt - black skirt
white shirt - white skirt
white shirt - red skirt
in math terms though, just multiply the 3 by 4 to get the amount :)