Answer:
65
Step-by-step explanation:
First, order the numbers in order. Then find the "middle numbers" and omit them after you have divided the number set into two equals parts. Then find the median of those number sets and then subtract.
You should get 71-6 at the end which is 65.
Answer:
She has paid $110.
Step-by-step explanation:
Step 1: Find out how much she pays in ONE MONTH.
$20 service fee × 3 months= $60
Dont forget about the activation fee (this fee should ONLY be counted ONE MONTH!!)
$60/3 months + $50 activation fee = $110
Step-by-step explanation:

Answer:
4092
Step-by-step explanation:
The n th term of a geometric series is
= a
where a is the first term and r the common ratio
4
← is the n th term
with a = 4 and r = 2
The sum to n terms of an arithmetic series is
=
, thus
= 
= 4(1024 - 1) = 4 × 1023 = 4092