Answer:
r = 13
Step-by-step explanation:
these angles are vertical and are congruent
8r + 6 = 9r - 7
6 = r - 7
13 = r
Answer:
1. 
2. 
Step-by-step explanation:
Answer:
ASA
Step-by-step explanation:
there are two congruent angles with an included side in between
.020 because it is 2 spots behind the decimal