The answer is 4 1/2 (four and a half).
C. assosiative property
as it follows the rule....
(a+b)+c = a+(b+c)
so c is the correct answer.....
HOPE IT HELPS YOU '_'
we know that
the triangle ABC and triangle EDF are congruent triangles-----> given problem
therefore

we know that
the distance between two points is equal to

Step 
<u>Find the distance AB</u>

substitute in the formula of the distance



Step 
<u>Find the distance BC</u>

substitute in the formula of the distance



Step 
<u>Find the distance AC</u>
we know that
the triangle ABC is a right triangle
so
Applying the Pythagorean Theorem

substitute the values in the formula


round to the nearest tenth

therefore



<u>the answer is</u>
The length of the hypotenuse is equal to 
Answer:
x = 1/15
Step-by-step explanation:
-5(3x-1+3x) = 3
add like terms:
-5(6x-1) =3
distribute -5 throughout the Parentheses:
-30x+5= 3
move the constant to the right side and change it's sign:
-30x=3-5
calculate:
-30x= -2
Divide both sides by -30:
x = 1/15