Answer: The first one, the last one,
Step-by-step explanation:
Answer: 2.2876792e+13
Step-by-step explanation: calculator
If you do x- number of water cups 1 over 8 will equal 32 over x ,x=256 so 256
if this makes any sense if not ill try better to explain
Similarities: same atomic number
Differences: they have a different number of neutrons
