Its just asking which angles are similar just list them in the same order on both sides
abc abc
cba cba
As go up the number sequence it is just the number added to get the new number plus 1. For example, since 2+3=5, 5+3=8+1=9
Thats a tough one :/ good luck
Answer:
The simplified form of r^-7 + s^-12 is ----> 1/r^7 + 1/s^12
Step-by-step explanation: