To find the percent increase you will create a ratio of the difference between the 2 prices and the starting price.
<u>(12.60-10.50)
</u>     10.50
<u>
2.10
</u>10.50
<u>
210
</u>1050
<u>
1
</u>5 is the ratio.<u>
</u>
        
             
        
        
        
13 quarters = 13 *0.25 = 3.25
3.60 - 3.25 = 0.35
0.35 = 0.25 +0.10
he has 1 dime and 14 quarters
Answer is B
        
                    
             
        
        
        
Answer: it’s probably negative 6.5 but there has to be a grid to be more clear 
Step-by-step explanation: