Supplementary angles are two angles whose measures add up to 180° . The two angles of a linear pair , like ∠1 and ∠2 in the figure below, are always supplementary.
        
             
        
        
        
Answer:
28.5 cm²
Step-by-step explanation:
There are 7 whole diamonds and 5 half-diamonds.  Each diamond is worth three.
7x3=21
5/2x3=7.5
21+7.5=28.5
 
        
                    
             
        
        
        
Answer:
<h2>m = 21, b = 5 → y = 21x + 5</h2>
Step-by-step explanation:
The slope-intercept form of an equation of a line:

<em>m</em><em> - slope</em>
<em>b</em><em> - y-intercept → (0, b)</em>
The formula of a slope:

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From the table we have y-intercept (0, 5) → <em>b = 5 </em>and other point (1, 26).
Calculate the slope:

 
        
             
        
        
        
8 1/9 because 9 times 8 is 72 and 73-72=1 so 8 1/9