Question 312049
The volume of the cylinder is 
{{{Vcyl=pi*R^2*H=pi*(14/2)^2*30=1470*pi}}}
The volume of the rectangular solid is 
{{{Vrs=l*w*h=7*7*30=1470}}}
The volume of metal is the difference between the cylinder and solid volume,
{{{Vm=Vcyl-Vrs=1470*pi-1470=1470*(pi-1)}}} or approximately,
{{{Vm=3148}}} cubic inches.