Respuesta :

2 1/2÷1/2=5 
Helen can make 5 pillows.

I hope this helped!!!:)
She can make 5 pillow cases because she has 2, 1/2 that means she could have 5 because there is one half in each whole which means there is already 4 pillow cases then add the 1/2 and you have 5 do your answer is that she can make 5 pillow cases