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: A. 70
Step-by-step explanation:
95 + 90 + 85 + 80 + 70 = 420, then divide that by 5 equals 84
The average can be calclculated as follows:
average = sum of number/number of numbers
average = (19+45) / 2 = 64/2 = 32
The answer is C, because there are two different numbers correlated to the same number on the Y side. The table does not represent a function.