You are taking a 578.23 mile trip to visit your grandparents. what is the distance of this trip in kilometers?

Define dew point. i am writing this part to be able to ask the question

What is the standard unit of measure for acceleration?

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