Answer: 
 22.50
- 15.00
_______
 7.50
Step-by-step explanation:
She still owes $7.50
 
        
                    
             
        
        
        
4,752 will be your answer
        
                    
             
        
        
        
Answer:
 3.7hours
Step-by-step explanation:
Step one:
A car travels 360 miles in 8 hours 
the speed is calculated as 
speed= distance/time
speed= 360/8
speed= 45mph
Step two:
 How much time will it take traveling 168 miles?
having found the speed, which is the rate at which the car is tavelling
time= distance/speed
time= 168/45
time= 3.7hours
 
        
             
        
        
        
Answer is: B
Step-by-step explanation: correct answer is B
b  
2
 −a  
2
  
Given, acotθ+bcscθ=p
            bcotθ+acscθ=q
⇒p  
2
 −q  
2
 =(p−q)(p+q)
                    =[acotθ+bcscθ−bcotθ−acscθ][acotθ+bcscθ+bcotθ+acscθ]
                    =[cotθ(a−b)−cscθ(a−b)][cotθ(a+b)+cscθ(a+b)]
                    =(a−b)(cotθ−cscθ)(a+b)(cotθ+cscθ)
                    =(a  
2
 −b  
2
 )(cot  
2
 θ−csc  
2
 θ)
                    =(−1)(a  
2
 −b  
2
 )[∵csc  
2
 θ−cot  
2
 θ=1]
                    =(b  
2
 −a  
2
 )
 
        
             
        
        
        
Answer:
1014 cm^2.
Step-by-step explanation:
There are 6 square faces on the cube and each face has area 13^2 = 169 cm^2.
The total area is 169 * 6 = 1.014 cm^2.