Answer:
is the solution to the equation: 
The statement is true.
Option A is correct.
Step-by-step explanation:
We need to determine if 
is the solution to the equation:
Solving the equation first to find value of x
Combining like terms:
Subtracting 2x on both sides
Now, subtracting 12 on both sides
Divide both sides by -6
So, we get
Therefore we can say that is the solution to the equation:
The statement is true.
Option A is correct.
Answer:
c and d
Step-by-step explanation:
the answer of the question is D
To find the area of a rhombus using diagonals, you must multiple the diagonals and divide then by 2. In this case 37 * 20 is 740. 740/2 is 370. 370 is your answer
All the angles should add up to 360°.
8x+10x+9+21x-12+90=360°
Group like terms together.
So,8x+10x+21x+9+90-12=360
39x+87=360
39x=360-87
39x=273
x=7
