Simple
scientific notation
8.009 × 10-3
The answer you already have selected in the image is correct. Even eyeballing it, you can see that the smaller shape fits into the larger shape 4 times.
Soiejidhhdihihdidhdjidjdidhidhdihdihiddd
Neutrons are in the nucleus with the protons.
If you need more help text me :) hope it helps
