Question

Represent each series as a sum using the summation symbol.

1.05 + 1.10 + 1.15 + 1.20 + . . .

Answer 1

\[\sum_{1}^{n}0.05x+1\]

Answer 2

Or:\[\sum_{r=21}^{n}\frac{r}{20}\]

Answer 3

Basically the same thing though.