What formula do i use?

1. what are the missing reasons in the proof 2. it's in the second picture and 3

Select the best attribute for the angle pair formed by two parallel lines intersected by a transversal.

Beth divided 9 ounces of her granola recipe into 4 equal-sized amounts. she placed the amounts into individual bowls. the fraction 9/4 represents the number of ounces of granola in each bowl. which other number represents the amount of granola beth has in each bowl? (a) 1 1/4 (b) 2 1/4 (c) 1 3/4 (d) 3 3/4 i need !