My answer is B and A that's my answer
        
             
        
        
        
Answer:
4
Step-by-step explanation:
Area of a triangle = bh/2
 
B = 2h
 
 
16 = 2h × 2/2
 
 
h×2 = 16
2h = 16
 * put a square root on both sides then u will get the answer which is 
 
Height of the triangle = 4
 
 
        
             
        
        
        
Answer: in the tens (on top of the 0 when dividing) 
Step-by-step explanation:
 
        
             
        
        
        
Answer: b, c, 4x^2y
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
4
Step-by-step explanation:
2/5*3000 = 1200 seniors
then
3000 - 1200 = 1800 students not seniors
therefore
4/5* 1200 = 960 do not like rock climbing
and
9/10** 1800 = 1620 also do not like it:
"how many students are in favor of this idea?"
subtract the "don't likes" from 3000
3000 - (960+1620) = 420 like rock climbing:
3x-x+2=4