First, let's start off, let us define what are corresponding angles. When a transversal, which is a line that passes through two parallel lines, then the angles in the same corners are congruent.
Using this definition, the angles ∠2 is congruent to ∠6.
To solve for R you use PEMDAS
15
3 x 5 or 5 x 3
35
5 x 7 or 7 x 5
So the answer is 5
91$ per day you divid 455$ by the 5 days and get 91$