Physics question?

The relationship between pressure and temperature is shown as P1/T1=P2T2 (Gay- Lussacs law), Pressure is P and temperature is T.
The constant volume is directly proportional to the Temperature (Kelvin). If this was graph it would give you a straight line.

a) What will be the pressure at 300K?
P1= 29.8 kPa
T1= 273 K
T2= 300 k
P2= ?
so T2 x P1 / T1 = P2
(300k x 29.8 kPa) / 273k = 32.7 kPa ( Remember Sig Digs!)
Ans= 32.7 kPa

b) What will be the temperature when the absolute pressure is reduced to 25.7 kPa?
P1= 29.8 kPa
T1= 273 K
P2= 25.7 kPa
T2= ?
so P2 x T1 / P1 = T2
(25.7 kPa x 273 K) / 29.8 kPa = 235 K (Note the Sig Digs!)
Ans = 235 K

This is more like a Chem question than physics but anyways good luck ! x)