What is the sum of an infinite geometric series if the first term is 156 and the common ratio is 2⁄3? a. 260 b. 468 c. 234 d. 208

S = a0 / (1 - r)

S is the sum

a0 is the first term

r is the ration

The sum is 2, and the first term is 0.5, so plug in what you know and see what you come up with:

2 = 0.5 / (1 - r)

That's an equation you can solve:

2(1 - r) = 0.5

1 - r = 0.5 / 2 = 0.25

0.75 - r = 0

0.75 = r

Ratio is 0.75.

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step-by-step explanation:

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right