9514 1404 393
Answer:
   {5, 10, 15, 20}
Step-by-step explanation:
Multiples of 5 are of the form 5n, where n is an integer. The ones of interest will satisfy ...
   0 < 5n < 23
   0 < n < 4.6
That is, the multiples of 5 we want are for values of n that are 1 through 4. The set is ...
   5 × {1, 2, 3, 4} = {5, 10, 15, 20}
 
        
             
        
        
        
9514 1404 393
Answer:
    -135/14
Step-by-step explanation:
There are an infinite number of rational numbers between any pair of numbers you name. These two number have the decimal values ...
   -67/7 = -9 4/7 = -9.571428... (repeating)
   -78/8 = -9 3/4 = -9.75
So, numbers like -9.6 = -48/5, or -9.7 = -97/10 are rational numbers that lie in the range you specified.
If you like, you can convert these numbers to ones with a common denominator (56).
  -67/7 = -536/56
  -78/8 = -546/56
These limits suggest several possible rational numbers with 56 as a denominator: -540/56 = -135/14, for example.
 
        
             
        
        
        
Answer:
x=-1
Step-by-step explanation:
8/x+2=2/x-4
8/x=2/x-6
8=2-6x
6=-6x
-1=x
 
        
                    
             
        
        
        
The sale price would be $150