Find P3 if a gas changes from 25 oC and 87 kPa to 50 oC

The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e

Ivana walks 2km north then turns around and walks 3km south

Do you think you could give me the answers to #29?