I don't know this so please tell someone else
Answer:
If it on g mail you go to the spam box and then press the spammers to account and then press block and then you will block them.
Answer:
circunferencia (o perímetro de una circunferencia) L es igual a dos veces el radio (r) por π, o lo que es lo mismo, el diámetro (D) de la circunferencia porπ. ... El concepto “longitud de una circunferencia” es igual al del “perímetro del círculo” y miden lo mismo.
The answer is : Boot the computer from a clean anti-virus disk and scan for viruses. Try booting into Safe Mode and run an antivirus scan from there. If Safe Mode will not boot, try booting normally but press and hold the shift key when Windows starts to load. By doing this, the pc would prevent the malware from loading when Windows is started.