Question

A plane is flying 6,478 feet above the ground. A helicopter is flying 4,817 feet above the ground.

Answer 1

The answer is B. 1700 feet

Answer 2

You have to minus 6,478 by 4,817 and then you get the answer 1,661 but you have to round up to the nearest hundred which in this case would be a 7 so the answer is 1,700ft so letter B...hope this helps
P.S. in the picture it says C but it is B