Answer:
5 hours
Step-by-step explanation:
A motorcycle will complete the 540 mile trip in 11.25 hours
And the car will complete it 2.25 hours less, i.e 11.25 -2,25 = 9 hours.
then, 
Speed of the car:
60t + 48t = 540
108t = 540
If you Divide both sides by 108 we get t = 5 
So, they will meet in 5 hours, 
 
        
             
        
        
        
6 greeting cards for 23.40 is the best price! It is $3.90 per each card.
        
             
        
        
        
Answer:
c- (2x+3)(x+1)
Step-by-step explanation:
Let me know if you want step by step
 
        
             
        
        
        
Answer:
1.1  R5.83
1.2 R70.01
1.3 58.34%
Step-by-step explanation:
Given that he buys a pack of 12 racing cars  for  R49,99 then the unit cost for a car which is the total cost divided by the number of cars in a pack
= R49,99/12
= R4.17
If each car is sold for R10 then the profit made on each car which is the difference between the cost and the selling price
= R10 - R4.17
= R5.83
The profit margin on one pack of 12 racing cars
Profit margin is the ratio of the profit to the total selling price
The total profit (profit on one pack of 12 racing cars)
= R5.83 * 12
=R70.01
Total selling price = R10 * 12
 =R120
Margin = R70.01 / R120
= 58.34%
 
        
             
        
        
        
A,C,B 
A’s unit rate is 11.0667
C’s unit rate is 12.009
B’s unit rate is 12.5