I need he answer pls {WIIL MARK BRAINLIST}

B.  {2, 5, 6, 9}

Step-by-step explanation:

Mean: the sum of all numbers divided by the amount of numbers.

Median: The number between the two middle numbers

Mean: {2 + 5 + 6 + 9} = 22 ÷ 4 = 5.5.

Median: The median of this data set will be 5.5 because it is in between 5 and 6    

fa tha first one you gonna add y to both sides

it look like this

x-y+y=6+y

x=y+6

therefore your answer is

x =y+6

fa tha second one

you gonna flip tha equation

it gonna look like x-4y=y

then add 4 to both sides

it gonna look like tha

x-4 +4 =y +4

so therefore tha answer is x=y+4

step-by-step explanation:

nada

step-by-step explanation: