The IQR or interquartile range is the difference between Q1 and Q3, also know as the upper and lower quartiles.
Answer:
2. x = 135
Step-by-step explanation:
im not sure about question 1
Answer:
The dimensions are:
by 
Step-by-step explanation:
The area of the rectangle is given as

The factored form of this quadratic trinomial gives the dimensions of the rectangle.
We factor 3 first to obtain;

We split the middle term to get;

We factor within the parenthesis to get;

We factor further to get;

The dimensions are:
by 
Then the perimeter will be

Answer:
4
Step-by-step explanation:
-2 + 6 = 4