Respuesta :

mathstudent55
3 1/2 ft = 3.5 ft

1 ft = 12 inches

3.5 ft = 3.5 * 1 ft = 3.5 * 12 inches = 42 inches

3 1/2 ft = 42 inches

All boxes must measure less tan 42 inches.

Only choice C has three measurements that are less than 42 inches.

Answer: C.