Answer:
The attached image shows the equation graphed on a graph. From there you can plot the points.
 
        
             
        
        
        
Answer:
I do not know
Step-by-step explanation:
 
        
             
        
        
        
Answer:
3
Step-by-step explanation:
$1.75 (ice cream) + $0.35 (topping) * x (some toppings) = $2.80, so I can rewrite it like that: 1.75+0.35x=2.80
1) Move the constant to the right side and change its sign: 0.35x=2.8-1.75
2) Substract the numbers: 0.35x=1.05
3) Divide the both sides of the equation by 0.35
4) x=3
 
        
             
        
        
        
<h3>
Answer:  0.6 grams per cm</h3>
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Explanation:
Pick any column and divide the weight over the length
column 1:  9/15 = 0.6
column 2:  12/20 = 0.6
column 3:  18/30 = 0.6
column 4: 30/50 = 0.6
The weight per cm is 0.6 grams per cm
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Another way you could look at is like so
9 g = 15 cm
9/15 g = 15/15 cm
0.6 g = 1 cm
We divided both sides by 15 to turn "15 cm" into "1 cm". Think of "per cm" as "per 1 cm". This works for any other column as well.
 
        
                    
             
        
        
        
The distance between (-5,3) and (5,3) is 10