Help please? I honestly don't wanna fail Math. This will decrease my average by a landslide (if I fail)

In the given diagram, ∠4 = 45°, ∠5 = 135°, and ∠10 = ∠11. part a: solve for the values of the remaining angles. show all your work for full credit. part b: use complete sentences to describe the angle relationship between the following angle pairs: 1. ∠4 and ∠1 2. ∠7 and ∠5 3. ∠9 and ∠10