The Seattle Seahawks have played 708 games all-time.

how many times have the seahawks started a season 5-0
Interpreted as:
How many times in the regular season have the seahawks started a season 5-0?
TEAMGPWLTTDPTSPPGOPP PTSOPP PPG1DWN3DWN%4DWN%
Seattle SeahawksSeattle Seahawks70836734011,77215,29921.614,88021.013,289

Try also: