The answer is 20 just plug your choices in to get which one works!
A would be the correct answer
One-eighth represents one part of a whole that consists of eight units, but one-twelfth represents one part of a whole that consists of 12 units. Fractions are made up of numerators and denominators. Numerators are the top numbers and denominators are the bottom numbers. The numerator is the number that represents the part of a whole. The denominator is the total number of parts.
4 / -16 = -1/4. (also -1/4 = -1/4).
The general form of the sequence is:
a, ar, ar^2, ar^3....
Where r is the ratio: 1/4, and a is first term: -16.
You can see each term is just ar^n where n is the term number, starting where the first term n=0.
So the general formula would be:
-16(-1/4)^n
