What is the mean of these numbers :
6,7,7,8,8,4,7,6,4,6,8,7

6.5

Step-by-step explanation:

It is 6.5 because 6+7+7+8+8+4+7+6+4+6+8+7=78 and because their is 12 numbers than 78/12=6.5

answer: c

substitute in the values.

for a:

f(0) = 0 + 9

f(0) = 9

a is a solution.

for b:

f(7) = 14 + 9

f(7) = 23

b is a solution.

for c:

f (3) = 6 + 9

f(3) = 15

c is not a solution. it's supposed to be 14.

for d:

f(2) = 4 + 9

f(2)= 13

d is a solution.

answer is  

minor arc – sw

major arc – stu

semicircle – wst

i got it down chief.