Chelsea sold half of her comic books and then bought 20 more. she now has 50. with how many did she begin?

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) = %

Will give brainliest what is the value of x? enter your answer in the box.

What is the y-intercept of the line given by the equation