I’m pretty sure it would be the third option, 162
        
                    
             
        
        
        
Answer:
100m^2
Step-by-step explanation:
area of trapezoid formula: 
b=base
so
base #1= 8
base #2= 12
h(height)= 10
(8+12)=20(sum of bases)
20/2=10(sum of bases over 2)
10*10=100(height * whats remaining of bases)
100m^2
hope this helps
 
        
             
        
        
        
When it doesn’t look like a U anymore and is upside down
Looking at an equation than when x is negative
        
             
        
        
        
Answer:
(3×20%+2×70%)/3+2=40%
Step-by-step explanation:
 Assuming the potions are the same type or do mix then probably the concentration of the potion depends on the type of reaction they have to each other.
Yet we can average the percentage of the active ingredient by the principle mentioned above