Answer:
$21.10=3.10+2m.
Step-by-step explanation:
If the total fare was $21.50, then that is what it will all have to equal out to.
They charged a pick-up fee of $3.10. Which means that no matter how far you go, you will pay that. Then an extra $2 per mile. If m is mile, then it would be 2m because it is $2 per extra mile. Then add the pick-up fee of $3.10 and you will get your answer of $21.50=3.10+2m.
 
        
             
        
        
        
Answer:
1) Decimal    
2) Binary    
3) Octal   
4) Hexadecimal   
Step-by-step explanation:
Given : Integer is 25                      
To find : Represent integer in decimal, binary, octal, and hexadecimal formats.
Solution : 
1) Integer into decimal - To convert into decimal the base goes to 10.
So, 
2) Integer into binary - To convert into binary the base goes to 2, it form in 0 and 1 and we divide integer by 2.
Divide 25 by 2 and note down the remainders.
2 | 25 
2 | 12    R=1    ←
2 | 6     R=0   ↑
2 | 3      R=0  ↑
2 | 1  →   R=1   ↑
So,    
3) Integer into octal - To convert into octal the base goes to 8 and we divide integer by 8.
Divide 25 by 8 and note down the remainders.
8 | 25 
   | 3 →   R=1    
So,   
4) Integer into hexadecimal - To convert into hexadecimal the base goes to 16 and we divide integer by 16.
Divide 25 by 16 and note down the remainders.
16 | 25 
    | 1 →   R=9    
So,   
 
        
             
        
        
        
Answer:
9. No
10. Yes
Step-by-step explanation:
The first one is not, since you have (3, 3) and (3, 9).  In a function, each x maps to a single y.
The second one is since every x appears only once. 
 
        
             
        
        
        
Answer:
17x - 15y
Step-by-step explanation:
(10x - 7y) + (7x -8y)
17x - 15y
 
        
             
        
        
        
Answer:


Step-by-step explanation:
we are given 
speed =8 mph
time = 6 hours 
so, we have 

now, we can find distance
distance = (speed)*(time)


so, we have 

so, our range for x and y can be 

