Can anyone help me with science?

An atom of nitrogen had seven protons in its nucleus. how many electrons does it have

You are working in the lab and are working with the same element but with varying isotopes of the element. you are working with c-11, c-13, c-14, and c-15. what is the average atomic mass of this element? (use periodic table) a- 12 b-15 c-14 d-13

Why does miranda have that particular vision of dr hildesheim answer?