Answer:
V = (4y³ + 6y² - 4y - 6) ft³
Explanation:
Its a rectangular prism so its Volume is its lenght * its width* its height:
V = l * w * h
V = (4y - 3) ft * (y + 2) ft * (y + 1) ft
V = (4y² + 8y - 6y - 6) ft² * (y + 1) ft
V = (4y² + 2y - 6) ft² * (y + 1) ft
V = (4y³ + 2y² - 6y + 4y² + 2y - 6) ft³
V = (4y³ + 6y² - 4y - 6) ft³