Answer:
Question?
Is the wording: price of "a" dollars, (in italics)?
If so, the equation would be:
0.8a
Otherwise, if "x" represents the regular price, then the equation would be:
0.8x
Step-by-step explanation:
 
        
             
        
        
        
Answer:
99
Step-by-step explanation:
-6-5[-4-(6+12)]+(-5)
Following PEMDAS
We work the parentheses from the inside out
-6-5[-4-(18)]+(-5)
-6-5[-22]+(-5)
Now we multiply
-6+110 -5
Now we add and subtract from left to right
104 -5
99
 
        
             
        
        
        
3,6.5,61.5,11,23 that is the pattern of 3's
        
             
        
        
        
Given:
The sequence is -8, -12, -16.
To find:
The nth and 52th term  of the given sequence.
Solution:
We have,
-8, -12, -16
It is an AP because the difference between consecutive terms are equal. Here, first term is -8 and the common difference is 




The nth term of an AP is 

Where, a is first term and d is common difference.
Putting a=-8 and d=-4, we get



Putting n=52, we get



Therefore, the equation for the nth term of the given sequence is  and the 52nd term of the sequence is -212.
 and the 52nd term of the sequence is -212.