Answer:
Option C is correct.
Step-by-step explanation:
We are given the expression:

The value of a =5 and k = -2
Putting the values and solving

Option C is correct.
Answer:
Options (1), (5), and (6)
Step-by-step explanation:
See attached image
X = unknown number
10x - 16 = 2x
Subtract 10x from both sides to isolate the variable on the right side of the equation.
-16 = -8x
Divide both sides by -8 to get x alone.
2 = x
About $0.48
you can make an equation
12/5.79 = 1/x
It would be 9, 9 1/2, 10, and 10 1/2. I think.