Answer:
96 units^2
Step-by-step explanation:
A of parallelogram =base×height 
12×8= 96 units^2
 
        
             
        
        
        
Since O is circumscribed about quadrilateral DEFG, the value of x is equal to: D. 68°. 
<h3>What is a supplementary angle?</h3>
A supplementary angle can be defined as two (2) angles or arc whose sum is always equal to 180 degrees. Mathematically, a supplementary angle can be calculated as follows:
Q + R = 180°.
In Geometry, the opposite angles of any cyclic quadrilateral that is inscribed inside a circle always form a supplementary angle. Thus, we would determine the value of x by using the mathematical expression above:
x + 112° = 180°
x = 180° - 112°
x = 68°
Read more on supplementary angle here: brainly.com/question/12542846
#SPJ1
 
        
             
        
        
        
All you have to do is multiply your number and then add them together !!
        
             
        
        
        
The answer is 

first you must multiply or use the FOIL method (First, Outer, Inner, Last)
First you multiply the first terms 

this gives you 3x^2, then you multiple the outer terms

this gives you -21x, then you multiply the inner terms 

that gives you 2x, finally you multiply the last terms 

that gives you 14, now you combine like terms

now you put all the terms together and end up with your solution 
