Hey, there! 
The parentheses would make it multiplication 
The word sum means add 
A number was unknown, so we will label it as "x" 
So, let's see what we're working with here! 
If you chose "Option A" the question would be "five multiplied by a number and the sum of 3" (that doesn't give you the right answer" 
For B. same thing with option A 
For "Option C" its not asking you "a number with sum of three times five" 
So, this leaves "Option D." as your answer because 3 is getting multiplied by the sum of some number and five
Good luck on your assignment and enjoy your day!
~MeIsKaitlyn:)
        
             
        
        
        
Answer:
-10
Step-by-step explanation:
Just set up a simple equation. 
 
        
                    
             
        
        
        
Well what you want is y = mx + b
m = slope
b = intercept for y
with that just substitute in the slope and the intercept, but leave the x and y as it is. So later on you can put in a x coordinate and get the y coordinate through that, hope this helps!
        
                    
             
        
        
        
Your answer will be:
The total number of marbles that are not black. 
        
                    
             
        
        
        
-3.3 times 2.2
basically the product of is 7.26