If the volume of your steel paper clip was 2cm2 what is its density

Using the information given in the question, we can't tell.

-- ' cm² '  is not a unit of volume, so the volume of the paper clip can't be 2cm² .

-- To calculate the density of anything, we need to divide its MASS by its volume. So, even if we did know the volume of the paper clip, we still don't know its mass, so we don't have enough information to calculate its density.

Sorry.

a 2,000 calorie based diet.

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form