 
<translate> Da farko ka gano lokacin da Marcy take amfani da shi wajen gyaran cat: minti 12 / 3 = minti 4. Sai ka ƙara wannan zuwa lokacin da ta yi ta sumbatar kuliyar don ka sami jimillar lokacin da ta yi tare da ita: minti 4 + minti 12 = minti 16. Saboda haka, amsar ita ce 16. <eng> First find the time Marcy spends combing the cat: 12 minutes / 3 = 4 minutes. Then add that to the time spent petting the cat to find the total time she spends with it: 4 minutes + 12 minutes = 16 minutes.
Therefore, the answer is 16. 