At a temperature of 57oC, a gas inside a 5.30 L metal canister has a pressure of 4000 torr. If the temperature is decreased to 13oC (at constant volume), what is the new pressure of the gas?

I know you use the formula
(P1/T1) = (P2/T2)

Use it. Are you looking for a hand out? We try to help, we try not to do.