Sh! They might hear us!

Which of these expressions are correct variations of the combined gas law? p1v1t2 = p2v2t1 both

There is one girl i like and i don't know how to tell her that, i have a feeling she knows but if she doesn't i don't want to make a fool out of myself how is one way to boost my confidence on asking her out

Which of the following words describe the reality that the universe looks the same from various perspective