Answer:
a) (x/7)^1/9=y
Step-by-step explanation:
f(x) = 7x^9
x/7= 7y^9/7
(x/7)^1/9=(y^9)^1/9
(x/7)^1/9=y
f^-1(x) is a fuction because it passes the vl test
Answer: the answer is x=-4.
16
B. Recursive
I calculated it logically
4.3
12.1-7.8= 4.3
Hope this helps! :) Is correct pls mark brainliest!
