Answer:
D
Step-by-step explanation:
We have the expression

First we need to distribute the negative throughout the parenthesis. Then we can combine like terms in order to simplify this expression

This answer matches D.
U = 1
L = 0
R = -2
I = 24
M = 17
H = -3
E = 100
S = -439
O = 11
B = -6
T = -41
D = 19
C = 206
<em>Hope this helped ! :)</em>
Number of Neutrons = Atomic mass - Atomic number
= 16 - 7 = 9
In short, Your Answer would be 9
Hope this helps!
The answer is 94.50 so C. I hope this helped. :)