Answer:
Step-by-step explanation:
first, you have to recognize that the two angles will be the same.   They are like that b/c of how they are opposites.    next , b/c they are the same , set them equal to each other and then solve the equation for x ( isolate x)
29 = 4x -1
29 + 1  = 4x -1 + 1
30 = 4x
30/4   = 4x /4
7.5 = x
now to find ∠DCE  just plug in x, but you also can just observe that ∠DCE is going to be 29° b/c the angle opposite of it is also. 
 
        
             
        
        
        
1. Since it's increased by 40% it would be 140%
2. It would be $294
        
                    
             
        
        
        
Answer: 58
Step-by-step explanation: You simply convert the 288 ounces into pounds.
(If you don't know how to divide the ounces by 16) Anyways once you get that you get 18 pounds and then add 18+40 to get your answer
 
        
             
        
        
        
Answer:
B. Quadrilateral
Step-by-step explanation:
Just took the test