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.

step-by-step explanation:

walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.