only the mean
Step-by-step explanation:
The mean which by where you add all of the data 6+7+9+10+11+13+14/7 Equals 10 which is the middle value, making it the measure of center
C. 4x + y = 21
4(3) + 9 = 21
12 + 9 = 21
21 = 21
You have to convert the 30 inches into you know what and add them all together
The equation would be 4(-22)-5