6 songs
The way to find this answer is to divide 18 by 3, which is six, which means that after every six songs a commercial is played. 
Hope this was helpful and that I explained it correctly. 
        
             
        
        
        
Answer:
The quotient is 48.
Step-by-step explanation:
Estimate the quotient using compatible numbers: 
45 (or I guess any number close the answer above, not sure tbh)
Multiply the estimate by 21: 
945
45*21
Is the estimate to high or too low? 
too low
Adjust and continue until the product is 1008.
1008/21=48
Have a good day/evening! I hope my answer is correct!
 
        
             
        
        
        
Answer:
The 6th degree polynomial is 
Step-by-step explanation:
Zeros of a function:
Given a polynomial f(x), this polynomial has roots  such that it can be written as:
 such that it can be written as:  , in which a is the leading coefficient.
, in which a is the leading coefficient.
Zero 1 with multiplicity 3.
So

Zero 4 with multiplicity 2.
Considering also the zero 1 with multiplicity 3.

Zero -3 with multiplicity 1:
Considering the previous zeros:

Degree is the multiplication of the multiplicities of the zeros. So
3*2*1 = 6
The 6th degree polynomial is 
 
        
             
        
        
        
Answer:
<h2>-4a²b³ (-6+ 7a³)</h2><h2 />
Step-by-step explanation:
24a²b³ - 28a⁵b³
apply exponential rule:
24a²b³ - 28a²a³b³
re-write 24 as 6*4    and  -28 as 7*4
6*4a²b³ + 7*4a²a³b³
factor common terms
-4a²b³ (-6+ 7a³)