Asap ! 20
what is the sum of the first 12 terms of the geometric series 200+100+50+25+

give the answer to the nearest hundredth.

use the formula sn = a1(1−rn) / 1−r

Step-by-step explanation:

You know that the formula to find the sum of a finite geometric series is:

Where is the number of terms, is the first term and is the common ratio ().

The steps to find the sum of the first 12 terms of the given geometric serie, are:

1. Find the common ratio "r". By definition:

Then:

2. Finally, knowing that:

You must substitute values into the formula.

Then you get:

2

step-by-step explanation: