Suppose the volume, V, in gallons of a tank at time, t, in minutes is given by V (t). If, as the tank is filled, V (5) = 2 and V'(5) - 8, what does this mean? OOnce 8 gallons are in the tank, every five minutes two additional gallons will be in the tank. Once 2 gallons are in the tank, every five minutes eight additional gallons will be in the tank. After 5 minutes, there are 8 gallons in the tank and 2 gallons are being added per minute. After 5 minutes, there are 2 gallons in the tank and 8 gallons are being added per minute. Every two minutes 8 gallons of water are being added to the tank