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How do you find the answer to these questions?
What is the sum of the first six terms of the geometric series?

2 – 4 + 8 – 16 + ...
Group of answer choices

-42

42

-420

126
question 2#What is the sum of the geometric series?

-2, 6, -18, 54
Group of answer choices

-122

54

40

-2
question#3What is the sum of the geometric series?

1, 2, 4, 8, 16, 32, 64, 128, 256
Group of answer choices

-511

-72

-144

511

a = 3.14

b = 18

c = 18/5 or 3.6 or 3 3/5

step-by-step explanation:

sinn is the total amount of students now and m were the students before, you subtract them both (n-m) and divide that by m. then, since to get a percentage from a fraction you have to multiply by 100, your answer should look like this: n-m/m*100

step-by-step explanation:

70.30

step-by-step explanation:

3/20

step-by-step explanation:

well, there are 20 outcomes, and 3 of them you want. so, 3/20