Hey there! :D
When you have a value, it is usually positive.
For example, if I have 5 chocolate bars, then I have +5 chocolate bars. 
When you take away a value, it is usually negative.
For example, I have 3 chocolate bars away, then I would have 3 fewer chocolate bars. (-3) 
Integers are negative or positive whole numbers.
12 songs= 12 <== the integer
Delete 5 old songs= -5 <=== the integer
I hope this helps!
~kaikers
        
                    
             
        
        
        
Answer:
1.5 + 0.5h = 5 and  0.5h + 1.5 + 5
Step-by-step
I think this would be the answer, sorry if it's not
 
        
             
        
        
        
What grade are you? 
i can hopple u 
        
             
        
        
        
The circle's area is 88.74<span>
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70 ft because 7 is bigger than 5 and 7x10=70