a sample of gas collected in the upper atmosphere of 0.75 atm is compressed into a 150.0 mL container at the same temperature. To what volume would the original sample have had to be compressed to exert a pressure of 10.0atm

I am trying to find out what v1 is
p1= 0.75
p2=10.0 atm
v2=150.0mL
v1=? ​