Hi!
So f(x) = 2x + 1
Since f(2), that means x = 2
f(2) = 5
Let's do a few more (the ones I don't do, you have to figure out!)
f(t + 1)...
f(t + 1) = 2(t + 1) + 1
f(t + 1) = 2t + 2 + 1
f(t + 1) = 2t + 3
g[f(m+2)]...
g[f(m+2)] = 2m + 5
Hope this helps! DM me if you need to know the rest. :)
