Question

I NEED HELP MAN PLEASE!!!! nobody is helping rn ):

Answer 1

B is the first term
c is the common ratio

if the first term is x and the 2nd is y then x times c=y

so
-5 times what=10?
what=-2
c=-2
the first term is -5

-5(-2)^(n-1)

b=-5
c=-2