If the 5 scores have a mean of 8, then their total sum would be 8*5 = 40
Now if one score if added (let's call this score x), there are 6 scores and the mean changes to 9, thus:
(40 + x)/6 = 9
40 + x = 54
x = 14
Answer:
C and X , B and L , A and W , D and G are congruent
Answer:
I do....................................
Answer:
8 + 

Step-by-step explanation:
i just wrote
as a decimal
times 2 with
and
times 5 with 
i might be wrong but hope this helps