Respuesta :

Answer:  116,640 cubic inches

Work Shown:

1 foot = 12 inches

1 yard = 3 feet = 3*12 = 36 inches

(1 yard)^3 = (36 inches)^3

1 cubic yard = 46656 cubic inches

2.5 cubic yards = 2.5*46656 = 116,640 cubic inches.