Please help me, I don't really understand this. It's due today, also please show your work. I'm giving 50 points for this problem.

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angles. measure need asap

What are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)

Plz.yesterday, the snow was 2 feet deep in front of archie’s house. today, the snow depth dropped to 1.6 feet because the day is so warm. what is the percent change in the depth of the snow?