Question

c

Answer 1

This is a geometric series with ratio of 5.

\(\Large \color{Black}{\Rightarrow a{1 - r^n \over 1 - r} }\)

\(\Large \color{Black}{\Rightarrow -2{1 - 5^8 \over 1 - 5} }\)

\(\Large \color{Black}{\Rightarrow -2{-390624 \over -4} }\)

\(\Large \color{Black}{\Rightarrow {-390624 \over -2} }\)

\(\Large \color{Black}{\Rightarrow 195312 }\)

Answer 2

so is this the answer

Answer 3

Yep!