Answer:
66.8421% decrease
Step-by-step explanation:
 
        
             
        
        
        
The quadrilaterals whose consecutive and opposite angles are always congruent are the square and the rectangle. All of the angles of the square and the rectangle are 90 degrees. The consecutive angles of the parallelogram and the rhombus are not equal.
        
                    
             
        
        
        
J stands for Jon, A stands for Angelica, and C stands for Chaya. 
J = C - 3 
A = C + 4
C = A - 4 
= 196 h
62 + 65 + 69 = 196
Jon worked 62 hours, Chaya worked 65 hours, and Angelica worked 69 hours. 
And that's your answer! ^ I hope this helped you! c:
        
             
        
        
        
I think n is 9 hope i helped 
        
                    
             
        
        
        
The answer is -3
You use the formula y1-y2
 ———
 x1-x2
-1 and 8 are your y’s 
1 and -2 are your x’s
Your equation should look like this
-1-8 -9
—— = —— = -3
1-(-2) 3
I plugged the y’s and x’s into the formula. 
I hope this helps!!