7 raised to power of 1 is 7
Answer is 7
Hope this helps
Answer:

Step-by-step explanation:
Method 1:
Arithmetic sequence is in the form

d is the common difference, can be found by:

Subtituting the
and 
You get:

Method 2 (Mathematical induction):
Assume it is in form 
Base step: 
Inducive hypophesis: 
GIven: 

Proved by mathematical induction

(-6y-2)+5(3+2.5y) expend
-6y-2+15+12.5
6.5y+13