Answer:
The answer would be 50% or 1/2
Step-by-step explanation:
It will have 15 protons because the atomic number will always equal the number of protons and vice versa
Step-by-step explanation:
use trigonometry ratios
Answer:
-20/27
Step-by-step explanation:
-4/3 ÷ 9/5
= -4/3 * 5/9
= -20/27
Hope it helps :)