Answer: D (bottom option)
Not Congruent
Step-by-step explanation:
Assuming the trapezoids are to scale, they are not the same shape. This means that they could not be congruent even if they were centered on top of each other.
 
        
             
        
        
        
Answer:
I got (1,2).
Step-by-step explanation:
Process of elimination:
Multiply the second equation by 3 to get same terms, subtract and solve for Y to get 2.
Plug 2 into second equation for Y to get x=1
(1,2)
 
        
             
        
        
        
SA = 2 +2
+2

1. Find the radius. 
R = 1/2D
6 x 1/2 = 3 
R = 3 
2. Plug them in. 
SA 2(3.14)(3)(7) + 2(3.14)(3^2)
3. Solve
3 x 7 = 21 
21 x 3.14 = 65.94 
65.94 x 2 = 131. 88 
3^2 = 9 
9 x 3.14 = 28.26 
28.26 x 2 = 56.52
4. Add them together. 
131.88 + 56.52 = 188.4 
Answer: 188.4 square millimeters
 
        
                    
             
        
        
        
Hey there!
a.) 1 inch
beginning = 2; end = 3; difference of 1
b.) December, because the length was, let's say, 2, then it went down 1 (so we're at 1), then went up 3 (4), then went down 
c.) in December 
Hope it helps, have a great day!