Please help ! On a test

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) =

Jacks bank statement shows an account balance of -$25.50. which describes the magnitude, of size, of the debt in dollars

Which expression converts 45 degree to radians