-21/5
Multiply 4 and 5, add 1
Answer:
It is not correct, x = -5
Step-by-step explanation:
This is equivalent to finding a function g in which

.
We simply reverse the actions of the initial function by adding 81 back and taking the square root. Therefore,

.
Answer:
I Think it is A
Step-by-step explanation:
It is a because 9×7=63