Answer:
$900
Step-by-step explanation:
a)Off given on purchasing a TV=  20%
 20% on TV = $ 180
Let the original price of TV set $ x
According to question,
20% of x= $180
 ×x= $180
x = $ 180× 5
x= $ 900
Hence, Original price of TV set= $ 900
b)  By second method,
20%= $180
1%= $ 9
100% = $900
Hence, the original price $ 900
 
        
             
        
        
        
 Answer:
Parallel 
Step-by-step explanation:
They're Parallel because whenever you graph them you see they never touch.
 
        
             
        
        
        
Answer:
I believe the first and last choice is correct.
~ hope I'm correct, if not I'm sorry~
Step-by-step explanation:
 
        
             
        
        
        
Answer:
d = 40.44
Step-by-step explanation:
Simplifying
25.14 = d + (-15.3)
25.14 = d + -15.3
Reorder the terms:
25.14 = -15.3 + d
Solving
25.14 = -15.3 + d
Solving for variable 'd'.
Move all terms containing d to the left, all other terms to the right.
Add '-1d' to each side of the equation.
25.14 + -1d = -15.3 + d + -1d
Combine like terms: d + -1d = 0
25.14 + -1d = -15.3 + 0
25.14 + -1d = -15.3
Add '-25.14' to each side of the equation.
25.14 + -25.14 + -1d = -15.3 + -25.14
Combine like terms: 25.14 + -25.14 = 0.00
0.00 + -1d = -15.3 + -25.14
-1d = -15.3 + -25.14
Combine like terms: -15.3 + -25.14 = -40.44
-1d = -40.44
Divide each side by '-1'.
d = 40.44
Simplifying
d = 40.44