Answer:
d
Step-by-step explanation:
Soooo,
d = 2r
(29) = 2r
29/2 = 2r/2
14.5 = r
|-124| + 25 + |-87|
124+25+87
236
Here is the graph for this solution
the number of protons in the nuclues of an atom
27
324 /12 = 27
I think this might be it hope it helps