Respuesta :

Answer:

A

Step-by-step explanation:

sqrt of (x_2 - x_1)^2 + (y_2 - y_1)^2

sqrt of (7 - -5)^2 + (2 - 7)^2

sqrt of (12)^2 + (-5)^2

sqrt of (144 + 25)

sqrt of (169)

13