The domain is talking about the "range" of the horizontal axis therefore you will be focusing on the x-intercepts.
The answer will be All non-negative real numbers less than or equal to 18
because the x-intercepts lies at 0 and 18. The answer makes sense because the furthest you can go is 18 ft and the closest you could go is 0 ft. The "all non-negative real numbers" puts a restriction on the least distance it could travel so that means that it stops at 0 ft because if you go any further, you will end up in the negatives and it clearly states "non-negative".
 
        
             
        
        
        
Probability=(number of specific outcomes)/(number of possible outcomes)
There are 4+2+6+5=17 total marbles so:
P(Yellow)=4/17
P(Blue)=2/17
P(Black)=5/17
P(Red)=6/17
        
                    
             
        
        
        
Answer: the answer would be D
Step-by-step explanation: in the exponent fraction the root would be 3 because the base of the fraction is thred. Always look at that.  
 
        
             
        
        
        
Answer:
0.003 but if you just put that in backwards, 345.
Step-by-step explanation: