(1 - 3k) - 4(2 + 2.5k)tbh i just need the answer

How to solve it and what thw answer is

Which expressions are equivalent to -6 + 3m

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) =