Answer:
First term is 12
Step-by-step explanation:
[tex]a _{n} = 12 - 4(n - 1)[/tex]
• For the first term, n is 1:
[tex]a _{1} = 12 - 4(1 - 1) \\ a _{1} = 12 - 0 \\ \\ { \underline{ \: \: a _{1} = 12 \: \: }}[/tex]
