You were right 24 is the answer. :)
The answer is 92 inches. because 1 foot = 12 inches, 7 feet x 12 = 84 inches. add the 8 remaining inches, and you get 84 + 8 = 92
4x-8 = 31
4x = 31 + 8
4x = 39
x = 9.75
Answer:A
Step-by-step explanation:
Let the function be represented by f(x).
Multiplying the number x by 4 results in 4x. Subtracting 2 from results give 4x - 2. So the function becomes:
f(x) = 4x - 2
Finding the inverse function:
Replace f(x) by y, and isolate x on one side of the equation and find the inverse:

Yes the inverse function represents the reverse process. Original function involved multiplication by 4 and then subtraction of 2. Inverse function involves addition of 2 and then division by 4. So the inverse represents the reverse of the given process.