How do I figure out the following question:

A close rectangular box has a surface area of 1000 square centimeters. Its length is twice its width and its height is 6 times its width, what is the volume?

From your second piece of information



From your first information



Now using the first equation to convert everythign into w







Now you can solve for w, then you can use the first equation I stated to get the length and height.

Then use:



to find your final volume.

Let me know if you need more help.