Please help - brainliest - thank you so so much!!!

please only answer if you really know, and please show some work :)

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) = %

Which ahows the graph of the solution set of 6x+4y< 12

Polynomial that can be factored as (3x-4)(3x+4)