can you help me it's mathematics

Answer:
Area of a rectangle = length × width
Volume = A × h
1) 168 ft³ = l × w × h
= l × 4 × 7
l = 168 / 28
= 6 ft
2) 240.198 cm³ = 4.3 × w × 13.3
w = 240.198 / 4.3 × 13.3
w = 4.2 cm
3) V = l × w × h
= 11 × 12 × 13
= 1716 m³
4) 210 mm³ = l × 3 × 14
l = 210 / 3 × 14
= 5 mm
5) V = 0.005 × 0.003 × 0.0004
= 6×10^-9 m^9