Question

Check my answer please!
Don't just say yes for the medal!

Answer 1

ok, how about "no"
the first one is wrong

Answer 2

also the second one
perhaps you are confused about "arithmetic" vs "geometric"
arithmetic means you ADD a constant from one term to get the next one
geometric means you MULTIPLY

Answer 3

in the first one you are adding 2 each time, it is arithmetic
in the second one you are multiplying by \(\frac{1}{2}\) each time
it is geometric