Just multiply the base times height times width which would give you 800
        
             
        
        
        
(4,2) is is the distance from these coordinates
        
             
        
        
        
Math is a subject which many people find disgusting and horrible but which i favour over others<span />
        
                    
             
        
        
        
Use the identity P(A ∪ B) = P(A)+P(B)-P(A ∩ B)
P(A)=0.50
P(B)=0.60
P(A ∪ B) = 0.30
=>
P(A ∪ B) = P(A)+P(B)-P(A ∩ B)
=(0.50+0.60)-0.30
=0.80
        
             
        
        
        
Number of combinations is equal to the product of the number of choices for each choice....
5*3=15 combinations