Im just trying to see if this answer is correct could someone check

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) =

Write an equation for the function that includes the points (1,4/5) and (2,2/3)

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!