Answer:
S = 380 - 380*80% 
Step-by-step explanation:
Given: 
- The original price of the desk: $380 
- Discount: 20% 
So, the new price of the desk after discounting is:
 380(100% - 20%) 
= 380*80% 
= 304$ 
The amount of money saved: 380 - 304 = 76$ 
Hence, the equation can be used to determine the amount of money saved is: 
Saving = 380 - 380*80% 
Hope it will find you well. 
 
        
                    
             
        
        
        
Answer:
13
Step-by-step explanation:
5-(-8)=13
 
        
                    
             
        
        
        
<span> First, reduce the fraction to lowest terms, e.g. 8/6 = 4/3. 
Look at the denominator. Split it into its prime factors. If its prime
factors only consist of 2's and 5's, then it will be terminating. 
Examples: 
16 = 2 x 2 x 2 x 2, so terminating 
25 = 5 x 5, so terminating 
2000 = 2 x 1000 = 2 x (2 x 5) x (2 x 5) x (2 x 5), so terminating 
12 = 2 x 3, so repeating (has prime factor 3, which is not 2 or 5) 
13 = 13, so repeating (has prime factor 13, which is not 2 or 5)  Hope this helps!!
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“My neighbor owns his own property” your book said non mathematical, but tell me if it’s supposed to be. I can write you a new one.
        
             
        
        
        
Answer:
- 4.2 degrees
Step-by-step explanation:
If the drop was from temp 0 at 8 pm to temp -16.8 at midnight (4 hours later)
then,the drop is given by the rate: -16.8/4 = - 4.2 degrees per hour
Therefore, at 9 pm the temperature was:
0 degrees - 4.2 degrees = - 4.2 degrees