Answer:linear
Step-by-step explanation:
If you go onto desmos and write the equation you get a straight line and it’s not curved
 
        
             
        
        
        
Answer is B. Zero
Reason
Pick any points on that line, they will have the same y value , it means they lie on a horizontal line. The slope of such a line is 0.
        
             
        
        
        
Christopher purchased 2.8 pounds of almonds and 3.5 pounds to roasted pistachios.
Step-by-step explanation:
Cost of almonds per pound = $10
Cost of roasted pistachios = $12
Total amount spent = $70
Weight of nuts = 6.3
Let, 
Weight of almonds = x
Weight of roasted pistachios = y
According to given statement; 
x+y=6.3   Eqn 1
10x+12y=70   Eqn 2
Multiplying Eqn 1 by 10

Subtracting Eqn 3 from Eqn 2;

Dividing both sides by 2

Putting y=3.5 in Eqn 1

Christopher purchased 2.8 pounds of almonds and 3.5 pounds to roasted pistachios.
Keywords: linear equations, elimination method
Learn more about elimination method at:
#LearnwithBrainly
 
        
             
        
        
        
She will pay 20$ for 10 pounds of hamburger