Question 152758
You need to find the volume of the outer sphere ({{{V[2]}}})and subtract the volume of the inner sphere ({{{V[1]}}}):
{{{V[2] = (4/3)*pi*R[2]^3}}} - {{{V[1] = (4/3)*pi*R[1]^3}}}
{{{V[2] = (4/3)*pi*(50.4)^3}}} - {{{V[1] = (4/3)*pi(50)^3}}}
{{{V[2] = 4.2(128024.064)}}} - {{{V[1] = 4.2(125000)}}} = {{{4.2(3024.064) = highlight(12701)}}} cu.cm Approximately.