1. (5+23)+65 = (5+65)+23 = 70+23 = 93 (D)
2. -(4x-7) = -4X+7 (C)
3. 2(6X+9) = 12X+18 (B)
4. 5(X-3) = 35
X-3 = 35/5
X-3 = 7
SO X= 7+3 = 10
THEN NO
9 IS NOT A SOLUTION
Yes a right angle does measure 90°
Answer:
A-15
Perimeter means- you add all sides up OR multiply.....
polygon has 5 sides and one side equals 3....
you can do 3+3+3+3+3
to find your answer or simply multiply 3*5
Your answer will be 3+3+3+3+3 or 3*5= 15
The answer to the equation is b
Answer:
130%
Step-by-step explanation:
Let x be the unknown number.
of the unknown number = 
We need to find the
of a number is what percent of that number.

Substitute 1.3x for new value and x for initial value in the above formula.

Cancel out the common factors.


Therefore,
of a number is 130% of that number.