Kim did. Make the fractions into decimals(4 divided by 5, 6 divided by 10) Kim got 0.8, while Grace got 0.6.
Here the my solutions,hope you understand
Find the equation of the inverse.

we have

step 1
Exchange the variables
x for y and y for x

step 2
Isolate the variable y

apply log both sides

step 3
Let

therefore
the inverse function is
Answer:
Step-by-step explanation:
b + g = 8x