Help please thank you!!

Determine the fraction of total interest owed. after the fourth month of a 12-month loan: the numerator is: {(n + ) + (n + ) + (n + ) + (n + )} = , and the denominator is: {(n) + (n + 1) + + (n + )} = . therefore, the fraction is numerator/denominator (to the nearest tenth) =

X2 + y 2 = 36 x + y = 6 solve the system of equations.

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2