What is the sum of the series? 4+12+36+108++8748

Sum of series 4+12+36+108+...+8748  is 13120

Step-by-step explanation:

Given series 4+12+36+108+...+8748

We have to find the sum of the given series.

A geometric sequence has a common ratio r and is defined by ,

and sum of series is given by  

12 = 4× 3

36 = 4 × 3 × 3

108 = 4 × 3 × 3 × 3

and so on

so

we have

Substitute ,and solve for r , we have n= 8

Thus,  the series can be represented as having common ratio r = 3  

Thus, sum of series is

we have

Simplify, we have,

Sum of series 4+12+36+108+...+8748  is 13120

whatever you can spend with $11.53 or under.

step-by-step explanation:

20 - 8.47 = 11.53. take away the money he used for lunch from the starting amount of 20.

d

step-by-step explanation: