Respuesta :

zmcever

Answer:

B.

Step-by-step explanation:

To solve, substitute 25 in for x:

[tex]a_{x} = (-3)2^x^-^1[/tex]

[tex]a_{x} = (-3)2^2^5^-^1[/tex]

[tex]a_{x} = (-3)2^2^4[/tex]

[tex]a_{x} = (-3)(16777216)[/tex]

[tex]a_{x} = -50331648[/tex]