Idon’t understand the correct answer is 1/6 but i tried it and i got 1/4 then i tried it again and then i got 2/3 i am very explain.

After the seventh month of a 12-month loan: the numerator is: {(n + 11) + (n + 10) + (n + 9) + (n + 8) + (n + 7) + (n + 6) + (n + 5)} = , and the denominator is: {(n) + (n + 1) + + (n + 11)} = . therefore, the fraction is numerator/denominator (to the nearest tenth) = %

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

If wxyz is a square, which statements must be true?