Please help me best one gets brainlist and 5/5

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) =

In the geometric progression –3, 12, −48… what term is 3,072?

What is the value of x in the equation 1.5x+4-3=4.5(x-2)?