The equation would be (x+4)+x=18. X stands for the amount of pears Wilma bought, and (x+4) is the amount of pears Tania bought (because she bought four more pounds than Wilma).
(X+4)+x=18
2x+4=18 (now you subtract four from both sides)
2x=14 (to get x by itself, divide both sides by 2)
X=7
Wilma bought 7 pounds of pears :3
        
                    
             
        
        
        
Answer:
1460 days till they collide again
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For this case we have that by definition, the volume of a rectangular prism is given by:

Where:
 It is the area of the base
 It is the area of the base
h: It is the height
So:

The volume of the prism is:

Now, the volume of the cubes is:

Thus, we divide and find the number of cubes to fill the prism:

ANswer:
n = 2.5
 
        
             
        
        
        
Answer:
so x=3 
Step-by-step explanation:
f(x) = 2
We want to find the x value when y =2
Going across where y = 2
Then go down to find the x value x=3 when y = 2
f(3) =2
so x=3
 
        
             
        
        
        
Answer:
the first question id k
20. d
24. 105, 96, -20, -73, -560
last question i also dont know