 Okay. So let's try this problem. Calculate the pressure in ATM, or atmospheres, if the bra meter reads 749 millimeters of mercury. So the conversion factor you know is 118 equals 760 millimeters of mercury. Okay. So all you got to do to calculate the pressure in ATM is take 749 millimeters of mercury and multiply that by that conversion factor. 1 atm at the top, 760 millimeters of mercury. Of course, millimeters of mercury cancels out. Okay. And you just take 749 and divide it by 760. 0.986 atm. You owe me a coke. Yep. I'm going to take the trash over. Now let's use the bra to come in.