Answer:
14 days approximately or 14.47 to be exact
Step-by-step explanation:
Let the number of days be x
Val paid $123 for x days for renting a bicycle where as $8.50 was rent of bicycle per day so dividing $123/8.50 gives us number of days 
which are 14.47 days.
$55 amount is ambiguous that whether it was flat ( as in apartment) rental fee or what?
 
        
             
        
        
        
Answer:
252
Step-by-step explanation:
560x0.45 is 252
 
        
                    
             
        
        
        
U have a 90% chance of picking an orange marble, 10% of picking a different color
        
             
        
        
        
Answer:
The speed of the current is 2 miles per hours 
Step-by-step explanation:
Given as :
The speed of motorboat = x = 15 miles per hour
The time taken by motorboat trip upstream = 51 minutes 
The time taken by motorboat trip downstream = 39 minutes 
Let The speed of the current = y miles per hour
Let The total distance cover = A miles
So , 
Speed = 
So, x - y = 
 
I.e  15 - y =  
 
And x + y = 
 
I.e  15 + y = 
 
 = 
 
I.e 
 = 
 
Or, 17 × (x - y) = 13 × (x + y)
Or, 17 x - 17 y = 13 x + 13 y
Or, 17 x - 13 x = 13 y + 17 y
Or, 4 x = 30 y
Now, ∵ x = 15 miles per hour
So, 4 × 15 = 30 y
Or, y =  
 
∴   y = 2 miles per hour
Hence The speed of the current is 2 miles per hours   Answer
 
        
             
        
        
        
Answer:
1 mile is 1.6 km
Step-by-step explanation:
I don't know how to explain