How would i solve the following problem? what is the sum of the first eight terms of a geometric sequence whose common ratio is 1/2? you in advance for your .

You would need to know the first term or two other terms of the sequence.

You can use the formula:

Sn = (a1(r^n - 1)) / (1 - r)

Where a1 is the first term and r is the common ratio

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15

just watch memes

step-by-step explanation:

it me < 3