Jill, Kevin's supervisor, asked for a sales update today. Jill is too busy to go back and forth between the different store locations. How can Kevin give her an update more effectively? O a) call with a quick update O b) send a detailed text c) book a one-hour meeting for tomorrow tomorrow morning o d) send a detailed email

Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3