This task is about translating a given English language sentence to Spanish.

[EX Q]: So in the constant expected return model, the log price at time t is the initial price.
[EX A]: Asi que en la constante espera retorno de modelo, el precio de registro en el tiempo t es el precio inicial.

[EX Q]: And you say, wait it doesn't exist yet.
[EX A]: Y decir, esperar no aun existe.

[EX Q]: What have you done?
[EX A]:
Que has hecho?