Answer:
I believe that this equation would be irrational
Step-by-step explanation:
a
replace x with -7
2×3.14×r=75
6.28 r=75
r=75/6.28=11.943=12 inch (nearly)
1 mole of anything = 6.023 * 10^23
2.13 * 10^24 divided by 6.023 * 10^23 =
3.54 moles