Question

Someone help fast please

Answer 1

A

Explanation:

The sequence of payment is geometric , that is

1, 3, 9, ...

The sum to n terms of a geometric sequence is

`S_(n)` =
`(a(r^(n)-1) )/(r-1)`

where a is the first term and r the common ratio

Here a = 1 and r = 3 ÷ 1 = 3 , then

`S_(15)` =
`(1(3^(15)-1) )/(3-1)` =
`(14348907-1)/(2)` =
`(14348906)/(2)` = 7174453 cents and

7174453 ÷ 100 = $71,744.53 → A

Answer 2

C

Explanation: