Nicol abre una cuenta de ahorros en la cooperativa "ayni", con un monto inicial de s/80 . Ella decide depositar una misma cantidad de dinero semanalmente para aumentar sus ahorros a partir de la semana siguiente.¿ Cuál de las siguientes expresiones permitira saber, cual es el saldo que Nicol tendra en su cuenta de ahorros al termino de "n" semanas.

or

Step-by-step explanation:

The expression depends on the amount of money Nicol will save each week.

Assuming that she'll save 115 soles each week, the expression would be

, because the initial condition is 80 soles, since that the initial amount of money.

Similarly, if she'll save 35 soles each week, then the expression is

Notice that the changing aspect is the coefficient of the variable, that is, the constant ratio of change, and in this problem, that constant is the amount of money Nicol will save each week.

what i would say the best answer is a. 40.5