Answer:
a. Yes, it will float in oil since it is less dense than oil.
b. No, it won't float in oil since it is more dense than the oil itself.
c. Yes, it will float in water since, the water is more dense than the object itself.
That’s easy if you think about it because 487 isn’t even in the 1000’s so the nearest 1000’s spot. Soo the answer is 1000
The unknown exponent is 5
If these are number systems then it will turn out like this 
