the answer is 3 
but a way to work these problems out is to use PEMDAS 
p-parentheses
e-exponent 
m-multiplication
d-division
a-addition
s-subtraction 
they  have to be donr in that order or the answer will come out different   
 
        
             
        
        
        
Let x represent the number of shirts. Let y represent the number of pens. 
If shirts are on sale for $11.99 each, then x shirts cost $11.99x.
If pants are on sale for $12.99 each, then y pants cost $12.99y.
The total cost is $(11.99x+12.99y).
Sarah can spend up to $65. Then an inequality that represents this situation is
11.99x+12.99y≤65 (this inequality holds when Sarah can spend $65 too)
or 
11.99x+12.99y<65 (this inequality holds when Sarah can spend less than $65).
 
        
             
        
        
        
Right angle because that has 90 degree angle
        
                    
             
        
        
        
Answer:
1/18 or 55.5%
Step-by-step explanation:
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The percent would be 560%