For every planet, no matter it’s period, or distance, period squared and distance cubed (equation p2d3 OR P*P/d*d*d) is the NUMBER A- differing
B-Same
C-smallest
D- Largest

I think the answer will be B

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.