Yes because when you subtract a number, you can also say that you added a negative. So if it dropped 23 degrees, then you also added -23 degrees
        
             
        
        
        
1 boy can work about 0.3 hours 
i think that’s the answer,but good luck
        
             
        
        
        
Answer:
5.5 servings
Step-by-step explanation:
4+7=11
11/2=5.5 sevings
 
        
             
        
        
        
Answer:
Around 11.9
Step-by-step explanation:
5.3n + 7.75 = 70.85
First subtract 7.75 on both sides.
5.3n = 63.1
Then divide both sides by 5.3
n=11.9 (I rounded to the nearest tenth.)