Hello, can someone help me with these three homework questions? I would really appreciate it! :( 7) A sample of air at 37 oC has a volume of 486 mL. What would the volume be when the temperature is -8 oC?

8) A balloon is filled with 17.0 L of a gas at 24 oC and a pressure of 675 mmHg. What is the pressure, in mmHg, of the gas in the balloon when the temperature is 27 oC and the volume is 33.0 L?

9) A cylinder is filled with a gas at a pressure of 127.5 kPa at a temperature of 290 K. What is the temperature, in oC, when the pressure is 3.51 kPa?

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1. why does the same side of the moon always face earthc.the rotational period of the moon is equal to one revolution around earth2. which is greater the moons period of rotation or its period of revolution  b.the moons revolution period around earth3.what was the major accomplishment of the apollo missions  d.landing on and exploring the moon4. which of these space missions involved the deployment of lunar rovers d.apollo5. which scientists are going to explore next on kepler-186fd. evidence of existence of life6.which mission is not going to explore the outside of the solar systemb.safir7.which technology limit the future of space exploration b. scientist must first develop certain technologies before missions can be completed.