cubic measures such as cubic feet, cubic meters
You get units cubed, or cubic units, for a rectangular prism.
solid have definite shape , definite volume and close together particles
with a scale
Rigid body.
There kind of solid object will determine the formula that will be used to find its volume.
solid
Any unit of mass divided by any unit of volume is a perfectly good unit of density, for any kind of substance.
it's the kind of food you can physically grab and maintains a stable volume
A cup is a unit of VOLUME measurement (usually used by the US for cooking). In standard units of volume measurement (understood worldwide) 1 cup = 236.5 milliliters. However, most everyday items are sold to you by weight, not volume and this is printed on the packet. Unfortunately there is no direct equivalence between units of volume and units of weight because to convert them you have to know the density of the substance (lead is denser than butter).
The first thing you have to do is look at the picture, and absorb all the information it gives you. After you do that, you know what kind of solid 's' is, and you have its measurements. That knowledge gives you the power to find the volume. I can't do that because the picture didn't come along with your question.
You can't compare that. You can only compare units that measure the same kind of thing: length with length, volume with volume, mass with mass, etc.
The English system does not have simple relationships of any kind, that is why scientists, and nearly the entire world other than the US, use the metric system.