Answer:
values = previous value + 1.3
therefore
common difference = 1.3
Step-by-step explanation:
 
        
                    
             
        
        
        
4 = y - 4 
You need to add 4 on each side and you will get 8 which means that y is equal to 8. 
4 = y - 4 
+4 +4 
8=y
        
                    
             
        
        
        
Answer:
   1453 cm²
Step-by-step explanation:
The area of a regular polygon is given in terms of its perimeter and apothem by ...
   A = (1/2)Pa
   A = (1/2)(145.3 cm)(20 cm) = 1453 cm²
The area of the pentagon is 1453 square centimeters.
 
        
             
        
        
        
70 x P = 63
P=63/70 = 0.9
Since P is 1-the discount
1-discount= 0.9
discount is 0.1, or 10 %