The answer is $3.57 because you must multiply 2.55 by 140 then divide that by 100 to find your answer hope this helps.
Answer:

Step-by-step explanation:
This is the distance formula for cartesian coordinate systems, or your typical xy graph. If given two points to find the distance between, you can assign '1' or '2' to the points, i.e. (1,1) and (2,2) could be: (1,1) is (x1,y1) and (2,2) is (x2,y2). It doesn't matter which point is 1 or 2. If we were to use those example points in this formula, we would have:

We can simplify and come up with:
=
We must remember that square roots can be positive OR negative, HOWEVER, because you are looking for a distance it must be positive
.
Hope this helped!

is the same as

. The 4s will cancel leaving you with

or

, your 3rd option.
Answer:
Min: 3
Q1: 7
Med: 10
Q3: 13
Max: 16
Step-by-step explanation:
The sum of interior angles = (n-2) x 180 where n is the number of sides