Answer:
I'd say the second and third one.
Step-by-step explanation:
Don't take my word for it though unless you want, it's a risk those two are the only two that do the same thing. They would get the same answer no matter what number is imputed for d.
2nd and third because it makes sense
hope it helps
I think the answer is 9/2
a₃ = 9
The numbers in the set are referred to as { a₁, a₂, a₃, ... }
Yes
