6 is the first quartile
Step-by-step explanation:
hope it helps!
For this case we have:
way 1:
Common factor 3 in the expression:
Way 2:
Write the number 12 as the sum of 4 times 3:

Then, for associative property:
Step-by-step explanation:
To find x,



To find arc AB,

To find Arc AE,


Arc ABC,

ACE

Answer: 
On a keyboard, you would write [5, infinity)
The square bracket means "include this value" and a curved parenthesis means "exclude this value". We cannot include infinity as it is not a number, so we always use parenthesis with either infinity.
is the same as
which is also the same as
which may help lead to set up the interval notation answer.