Answer:
, x>=0
Step-by-step explanation:

To find the inverse function , replace f(x) by y

Replace x with y and y with x

Solve the equation for y
take square root on both sides

Now subtract 6 from both sides

replace y with g(x)

Answer:
20g
since mass should be in kg or gram if small then g
Answer:
4,200
Step-by-step explanation:
There are 2 methods you are taught in Middle School.
Elimination and Substitution.