Question

I need help with this question these questions

Answer 1

And this one too

Answer 2

Density is the ratio of mass and volume.

Answer 3

yeah i know that but I stiil have probelems (sorrry for my englsih)

Answer 4

Density is a physical property which tells us how compact the substance is filled in a given part of volume

Answer 5

I know that

Answer 6

Yes so here density = 18/2
Which is 9 gm/cubic cm.

Answer 7

but wait how do u get that

Answer 8

Because 18 in the numerator is the given mass and 2 in the denominator is the given volume.