Which statements are true about mass and/or density? > A balloon inflated with air has less mass than a marble
> A basketball-sized balloon filled with air has more density than a baseball-sized balloon filled with sand
> A marble has more density than a balloon inflated with air
> Objects with low density tend to sink more quickly than those with high density
> If two balls are placed in a tank of water, the one with more density will sink faster
> The more dense an object is, the lower its mass will be
PLEASE HELP!