Formula for area of parallelogram:
A= bh
Where b is the length of base and h is the height.
Here b=2.3+4.5 = 6.8 cm
and h= 4.5 cm
Put values in formula.
A= 6.8 x 4.5
A=30.6 cm²
Answer: 30.6 cm²
        
             
        
        
        
Answer:
Step-by-step explanation:
The first one. 
 
        
             
        
        
        
Its B bro becauseiys a negative so you would get rid of the symbol then flip the negative
        
                    
             
        
        
        
The distance formula is d=√(x2-x1)² + (y2-y1)²
So... d =8.06226
Hope this helps