Answer:
The answer is 5 .
Step-by-step explanation:
You have to substitute the values of a, b and c into the expression :
[tex] \frac{ac}{2b} [/tex]
Let a = 5,
Let b = 5,
Let c = 10,
[tex] \frac{5 \times 10}{2 \times 5} [/tex]
[tex] = \frac{50}{10} [/tex]
[tex] = 5[/tex]