In generation zero, we have one egg, no chickens, and no hens. In the nth generation, each egg from the previous generation hatches into a chicken, each chicken from the previous generation grows up into a hen, and each hen from the previous generation lays an egg. Complete the mutually recursive functions that yield the number of hens, chickens, and eggs in the nth generation

Poultry. java
1 public class Poultry
{
public static int hens(int n)
{
}
public static int chickens (int n)
{
}
public static int eggs (int n) 17
}

To save energy, the air supply to a 2000 ft office has been shut off overnight and the room temperature has dropped to 40°f. in the morning, the thermostat is reset to 70°f and warm air at 120 f begins to flov in at 200ft'/min. the air is well mixed within the room, and an equal mass flow of air at room temperature (changing with time) is withdrawn through a return duct. the air pressure is nearly 1 atm everywhere. ignoring heat transfer with the surroundings and kinetic and potential energy effects, estimate how long it takes for the room temperature to reach 70°f. plot the room temperature as a function of time.