Answer:
1. a i think
Step-by-step explanation:
2. 5.81818
We have
.
To find inverse function
we substitute x with
and vice-versa to get

Now solve for
. Note that I will use
instead.

So we find that
.
Hope this helps.
Answer:
9
Step-by-step explanation:
3/4 = x/12
Cross-multiply: 36 = 4x
x = 9