Answer:
20
Step-by-step explanation:
Remember PEMDAS!
So first parentheses: 
1.6^2 = 2.56
8.7 + 9.3 = 18.
Because that is inside another parentheses you multipy them.
2.56 x 18 = 46.08
Now: 46.08 divided by 1.8 = 25.6
Now subtract:
25.6 - 3.7 - 1.9 which equals 20!
Hope that helped!
 
        
             
        
        
        
Answer:
120-4.50 = 115.10
Step-by-step explanation:
She will have $115.10 left if she buys one mean
 
        
                    
             
        
        
        
Answer:
x = 48°
Step-by-step explanation:
x + x + 84° = 180°
2x = 180° - 84°
2x = 96°
x = 96°/2
x = 48°
 
        
                    
             
        
        
        
Answer:
i think its 10 or 20
Step-by-step explanation:
 
        
             
        
        
        
Answer:
75600k^4 m^4 Hope that help !
Step-by-step explanation:
1. Take out the constants (25×7×18×24) kkkkmmmm
2. Simplify 25×7=175 (175×18×24)kkkkmmmm
3. Simplify 175×18=3150 (3150×24)kkkkmmmm
4. 3150×24= 75600kkkkmmmm
5. The answer would be 75600k^4 m^4