Can someone help me with this?

If I’m right the answer is approximately 718.37

718.38cm

Explanation: You fill find the volume of the sphere by inserting the radius in volume formula with is 4/3 pie r^2 where r is the radius and youll end up with 1436.76. Then you’ll divide it in half which would look like 1436.76/2 and the answer would be 718.38cm

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?