Answer:
The correct answer is 28
Step-by-step explanation:
This will be 18.39, 6 is higher than 5, so the 8 is going higher so it's a 9 and you will get 18.39
Since the Power is directly proportional to the velocity, their ratio

is constant.
<span>Therefore </span>

which is a proportion:
500 : 1000 = x : 1728
that can be easily solved:
x = (500×1728)/1000 = 864kW
The answer is b because there is a negative in the exponent and the number needs to be a single digit and 54 is double digit. hope this helps!