Answer:
B
Step-by-step explanation:
Answer:
maybe 11? because it says to Subtract the sum of the two angles from 180 degrees. The sum of all the angles of a triangle always equals 180 degrees. Write down the difference you found when subtracting the sum of the two angles from 180 degrees. This is the value of X.
Step-by-step explanation:
The true answer is A. all parallelograms are rectangles
X+x+4+3x-9=90
5x-5=90
+5 +5
5x=95
5x/5=95/5
x=19
(6•x) + 7 = 8
6x + 7 = 8
6x = 1
X = 1
