Answer:
g/cm³
Explanation:
As, Density=
Mass= 30g
Volume= length×width×height
or
Volume=area×height
Here, area=4cm² and height=2cm
The older you get the more your brain will develop... Right, but, when your body hits a certiant age that all goes in reverse. This may not be as bad if you live a healthy lifestyle because then your body is ready and open for when that age comes so that memory loss is slower. but if you are not active at all you will cause heart problems, tourmers, etc. witch can develop memory loss faster
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Sorry about spelling I know it sucks!!
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