Very nice handwriting but the math and English are confusing.
Let's assume we're told

The subscript is important.
I think we're told the similar sum with 11 gives the smallest possible value for the sum. This is a rather cagey way of telling us 11 is the mean of the nine points. The mean is the number which minimizes the sum of squared deviations.


If 11 is the mean, the sum of the points is 9(11)=99.

Answer: 1080
I believe it is WW and WL for the top row and LW and LL for the second one. This kind of reminds me of punnett squares.
Answer:
y-1=3(x--1)= 3x-y+4
Step-by-step explanation:
mrk me brainliest plz
Answer:
sales tax is $1 and totel cost is $21
Step-by-step explanation: