Answer:
D
Step-by-step explanation:
 
        
             
        
        
        
Joshua must have 7 more customers if they each buy 2 items.
        
                    
             
        
        
        
ANSWER: There are no solutions
        
             
        
        
        
Answer:
27°,63°
Step-by-step explanation:
Let the two angles be a and b. 
They are complementary, meaning they add up to 90. Thus: 

And we are told their difference is 36. Therefore: 

Solve for the system of equations. Add b to both sides in the second equation: 

Substitute this into the first: 

Combine like terms; 

Subtract 36: 

Divide by 2: 

So, b is 27 degrees. 
Use the second equation again: 

Now that we know b is 27, substitute: 

Add 27 to both sides: 

So, a is 63 degrees. 
And we're done :)