Find s for the given geometric series. round answers to the nearest hundredth, if necessary. a1=0.2, a5=259.2, r=6 a) 311 b)51 c)222.2 d)624.96

A

Step-by-step explanation:

Sum of the first n terms of a geometric series is:

S = a₁ (1 - r^n) / (1 - r)

Here, a₁ = 0.2, r = 6, and n = 5.

S = 0.2 (1 - 6^5) / (1 - 6)

S = 311

Option A

Step-by-step explanation:

For the given geometric series  

a₁ = 0.2

a₅ = 259.2

r = 6

Then we have to find the sum of initial 5 terms of this series

= 311

Option A is the answer.

he earned 78.75 in interest.

step-by-step explanation:

$649.60

step-by-step explanation: