Respuesta :

31: 45 minutes (60 x 0.75 = 45)
32: 3 inches per string (12 / 4 = 3)
Ollo
Each string size in inches is 3 because a foot is 12 inches so then you divide 12 and 3 because the problem says it got cut into 4 pieces and 12 divided by 4 is 3. Hopes this helps