If an object has a density of 0.55 g/ml, what is its density in cg/l?
0.0055 cg/l
55 g/l
550 g/l
55,000 g/l

if              1 g is equal to 100 cg

then  0.55 g are equal to X cg

X = (0.55 × 100 ) / 1 = 55 cg

The density of the object is 55 cg/L.

thats how its supposed to be

what is the question here. i think you messed up.