Answer:
1, see the picture below, I used a calculator!
I hope this helps!!
 
        
             
        
        
        
1 plus 1 equals 2 ,2 times 0 equals 0 .get it.
        
                    
             
        
        
        
Answer:
20, increased, Bianca
Step-by-step explanation:
First one:
He is shown to have travelled 20km in 1 hour, so that's 20km/h.
Second:
The gradient is how steep the curve is, the steeper the faster the person is travelling. Due to the fact Bianca's curve becomes steeper, it shows she is travelling faster. Therefore, her running speed increases.
Third:
Bianca's line hits 50km before Alberto, so therefore she finished first.
Let me know if this makes sense, hope it helped! :D
 
        
             
        
        
        
Answer:
B
Explanation:
The y intercept can be read directly off of the graph, and is where the line intersects the y of the graph. 
The slope (gradient) can be determined by using the equation y=mx+c, where we can substitute in the y intercept and an x and y value on the line.
y=mx+4
(2;0) is a point on the line, it is the coordinates of the x intercept (y intercept will work as well)
0=m(2)+4
m=-2
        
                    
             
        
        
        
Answer:
how many tiles are "those" bc you cant figure it out without that info sorry.
Step-by-step explanation: y