If gas in a sealed container has a pressure of 50kpa at 300k what will the pressure be if the tempature rises to 360k

Aballet student who learns with the of his instructor is demonstrating learning.

Suppose you have three polarizing filters, with the second at an angle of 42∘ to the first and the third at an angle of 90∘ to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?

Ineed the answer to question 1 , i’m desperate