Question

please help me answer these questions!

Answer 1

I'm pretty sure the answer is 259

Answer 2

The first term is 6^0 = 1. The common ratio r is 6. There are 4 terms in the series.

Using the formula for sum of geometric series S = a(1-r^n)/(1-r),

S = (1-6^4)/(1-6) = 259