sold 45 of his DVDs and purchased 10 more. If Smith has 15 DVDs now, how many DVDs did he have to begin with?
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#10
Volume of a cylinder:
r²h
Plug the numbers in.
3²15 = <span>424
</span>
The volume of the pipe is 424 cm³.
Volume of a cylinder:
Plug the numbers in.
</span>
The volume of the pipe is 424 cm³.