In this case, we'll have to carry out several steps to find the solution.
Step 01
Data:
# paper clip = 5x10^3
m paper clip = 8x10^-4
total m paper clips = ?
Step 02:
total m paper clips = # paper clip * m paper clip
[tex]\text{total = 5}\cdot10^3\cdot8\cdot10^{-4}=\text{ 40}\cdot10^{(3-4)}[/tex][tex]\text{total = 40.10}^{-1}[/tex]The answer is:
total mass of paper clips is 4 kg.