To find the value of \( g(12) \) given the function \( g(x) = 3(x + 8) \):
1. Substitute \( x = 12 \) into the function.
[tex]\[
g(12) = 3(12 + 8)
\][/tex]
2. Add 12 and 8 together inside the parentheses.
[tex]\[
12 + 8 = 20
\][/tex]
3. Multiply the result by 3.
[tex]\[
g(12) = 3 \times 20 = 60
\][/tex]
Therefore, the value of [tex]\( g(12) \)[/tex] is [tex]\(\boxed{60}\)[/tex].
