If 6.890 mole of neon gas is 10 degrees C and has a pressure of 2.800 atm, then what is the volume?

ik i just asked this but i rllyyy need help. i just need someone to explain which formula for which law i would use, and how to work it out

PV = kT so you want V such that

2.8V/(273+10) = 1*6.89*22.4/273