X = 5/6 - 1/6 = 4/6 = 2/3
I believe the answer is d.
Answer:
120
Step-by-step explanation:
calculator
Substitute -2 in for x and get (9)^-2
Flip the equation so that the exponent is positive and get 1/9^2
Work it out 1/(9*9) = 1/81
There is no number to answer this question