Answer:
1.5 for each song. 
Step-by-step explanation:
subtract $6.99 by $21.99 = 15 divided by 10 = 1.5
 
        
             
        
        
        
Answer:
5 and 6
Step-by-step explanation:
-5 x 6 = -30
-5 + (6) = 1
x2 + 1x - 30 = 0
(X - 5 ) (X + 6)
To summarize, since -5 and 6 multiply to -30 and add up 1, you know that the following is true:
x2 + 1x - 30 = (X - 5 ) (X + 6)
 
        
                    
             
        
        
        
Answer:
205
Step-by-step explanation:
Given 
N(t) = 100 + 15t is the equation of the relation. 
We're asked to find N(7)
Taking a look at the question again and putting it side by side the equation 
N(t)
N(7)
We can deduce that t = 7, and as such, solve for it in the equation given
N(7) = 100 + 15(7)
N(7) = 100 + 105
N(7) = 205
Therefore, the number of unread mails after 7 days will be 205
 
        
             
        
        
        
Answer:8.11%
Step-by-step explanation:
Before Tax Price: $70.75
Sale Tax: 8.11% or $5.74
After Tax Price: $76.49
 
        
                    
             
        
        
        
Answer:
The solutions of the equation are 0 and 0.75.
Step-by-step explanation:
Given : Equation 
To find : All solutions of the equation algebraically. Use a graphing utility to verify the solutions graphically ?
Solution : 
Equation 

Either  or
 or 
When  
 
 
 
When 
Solve by quadratic formula, 
 
 
 
 
 
The solutions of the equation are 0 and 0.75.
For verification,
In the graph where the curve cut x-axis is the solution of the equation.
Refer the attached figure below.