Answer:
c. strong positive
Step-by-step explanation:
edgu 2020
C: strong positive
7.5
a^n=-9+(n-1).5
Arithmetic sequence=a+(n-1)d
a=-9
n=?
d=+5
Arithmetic sequence=-9+(n-1)5
=-9+5n-5
Collect like terms
-9-5+5n
-14+5n
So the final answer is
an=-9+(n-1).5
Answer: -7+3y
6x-8x-5x+3y
6x-5x= x
x-8x=-7x
-7x+3y