Answer:
No, your argument is not valid. It is not valid because if you would have done the assingnement sooner, you would have been able to get it done in time for said due date. Unless you have a valid excuse as to why you could not complete it sooner, that is. If you would have explained to your tecaher sooner that your internet was down, maybe say the beginning of week two; that would have been a different story, and maybe you would have been allowed an extended time period to complete the assignment.
((I'm not sure if that's 7, but I couldn't drag it on any longer, hope this helps! <3)
Step-by-step explanation: