Answer:
494018
Step-by-step explanation:
you are trying to find the diameter of the circle, it is usually half the length of a radius, but since 497 squared is how long a radius is (unless the question asked that the area if 497 inches squared), i can't really give you a clear answer, but the diameter is 247009 times 2 which is 494018
The answer is m to the power of 8. Just add exponents with the same base.
70/10= 7
So,
77/10-70/10= 7/10
You need to subtract 7/10 from 77/10 to make 7.
I hope this helps!
~kaikers