Consider each of the numbers and units below, select all which represent measurements and therefore have error. 16.4 inches long
30 students in class
Weighs 107.2 kilograms
1 dozen = 12 objects

If 15 drops of ethanol from a medical dropper weight 0.60g, how many drops does it takes from a dropper to dispense 1.0ml of ethanol? the density of ethanol is 0.80g/ml

Which rate indicates the number of children that would be born per woman if she were to live to the end of her child bearing years

The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth