Answer:
Step-by-step explanation:
B
 
        
             
        
        
        
Answer:
x²y²+xy²+3+xy+2y²
Step-by-step explanation:
(2x²y²+x²y+xy²+3)-(x²y²+x²y²+x²y-xy-2y²)
1. remove the parentheses (when there’s - in front of an expression  in parentheses  change the sign of each term of the expression)
2x²y² + x²y + xy² + 3-x²y² - x²y² - x²y + xy - 2y²
2. eliminate the opposites 
2x²y² + xy² + 3 -x²y² + xy +2y² 
3. collect like terms
x²y² + xy² + 3 + xy + 2y²
 
        
             
        
        
        
Answer:
{7/2)2
Step-by-step explanation:
 
        
             
        
        
        
100 - 3(3y - 4x) = 100 - 3(18 - 16) = 100 - 3(2) = 100 - 6 = 94
 
        
                    
             
        
        
        
Answer:
44.8
Step-by-step explanation:
Take the second number and subtract the first number
44.4 - (-.4)
Subtracting a negative is like adding
44.4 +.4
44.8