Squeaky the balloon has been living large (diameter = 25 m) high above Santa ana college, where T= -20 Degree C and the air pressure is 5800 Pa. A bird stops to rest on top of Squeaky, causing him to sink and raising the air temperature by 30 degrees. What is the air pressure at this point, when his volume is down to 25% of its original value nad the bird flies off in irritation?