NEED HELP! It is a very confusing lesson

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) =

Use the distributive law to multiply. 3(4x + 5y + 6)

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28