These two figures are the image and pre-image of a dilation. find the value of X

A
4m

B
6m

C
8m

D
9m

Which represents the inverse of the function f(x) = 4x? h(x) = x + 4 h(x) = x – 4 h(x) = x h(x) = x

Me i’m stuck on all these questions besides the two bottom ones

Azul has 4 green picks and no orange picks.you add orange picks so that there are 2 orange picks for every 1 green pick.how many picks are there now.