i need help with the correct number for significant figures

Question 4 (1 point) Saved An object has a volume of 1.37 liters and a density of 2.96 g/mL. The mass of this object is 4055.2 grams. Be sure to use proper significant figures. Question 5 (1 point) Saved An irregularly shaped object's density was found by displacement in water. The object had a mass of 63.3 grams. The original water volume was 33.0 mL and the final water volume (with object added) was 42.1 ml. The density of the object was g/mL. Be sure to use proper significant figures. 6.956