(a + b)2   Plug in the a and b values
(2 + 3)2   Add 2 and 3
(5)2         Multiply 5 and 2
10
When a = 2 and b = 3, (a + b)2 will equal 1.) 10.
        
                    
             
        
        
        
Answer:
The cost of the old ball was $100.
Step-by-step explanation:
The cost of the new ball = $300
The new ball has three times the price of his old ball.
So, let the price of the old ball be = x
As per situation, we get the equation:

Dividing both sides by 3:

=> x = 100
Hence, the cost of the old ball was $100.
 
        
             
        
        
        
Answer:
1:2 and 4:6 which equal 3:10 
Hope I Can Help!! :) Good Luck
 
        
             
        
        
        
Total= Car Cost + (Car Cost * Tax %)
Total= $16,800 + ($16,800 * 6.25%)
convert % to decimal form; divide % by 100
Total= $16,800 + ($16,800 * 0.0625)
multiply inside parentheses
Total= $16,800 + $1,050
Total= $17,850 
ANSWER: The total cost for the used car with tax is $17,850.
Hope this helps! :)