The value for n is 
<h3>solving for n</h3>
<u>given data</u>
10n^{2} - 12 = -8
making n the subject of the formula
10n^{2} = -8 + 12
10n^{2} = 4
divide through by 10
n^{2} = 4 / 10
finding the square root of both sides
n = square root ( 4 / 10 )

n = 0.632 or 
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Option A
x+8=-3
x+8-8=-3-8
x=-11
Hope I didn't mess up for your sake!
Answer: a
Step-by-step explanation:
none of the answers in b are divisible by 4
Answer:
c and d
Step-by-step explanation: