bitie .] 6.920 pts. On May 29, 2009, Carl Fredricksen and crew attached a number of helium-filled (Mse = 4), 6-foot diameter weather balloons to his house and flew to a place like America, but south. If the house, crew, empty balloons, and rope weighed 85,000 lbr and are an overall negligible volume, how many balloons were attached to the house? Assume pressure and temperature are the same in and out of the balloons and are 1 atm and 59 F. Vsphere = #R; Matr = 29 Incomplete 20