Answer:
Option C is correct.
Step-by-step explanation:
We have been given total 8 data
Data is : 12,15,18,20,23,23,28
Here, n=7
Median is 
Median is 20.
When one data is added n=8
The median of even number of data is

Median is
Median is 
4th terms is 20
5th terms is 23
Since, median should not be change hence,
Median will be 20.
Therefore, option C is correct.
The answer is 16y. You add the numbers up and keep the y.
Answer:
10, 12, 14
Step-by-step explanation:
even numbers, just add 2 to previous answer
Answer:
I will put the answer below, but here is a tip:
Use PEMDAS. PEMDAS IS THIS:
P ( ) parenthesis
E y+x exponents
M x multiplication
D ÷ division
A + addition
S - subtraction
Key:
Property used=PU
Step-by-step explanation:
Part A:
18= 6x(2x-3) PU=( ), y+x, x, & -
Part B:
8+3b-1 PU= y+x, +, & -
Part C:
=12 PU= =
Part D:
14+3n=8n-3x(1-4) PU= ( ), y+x, x, +, & -
Part E:
22x+11-4x-7 PU= y+x, +, & -
(1. -2) (2. 0) (3. 6) (4. 3)