Find 75% of $36 and add it to $36. Convert 75% to a decimal and multiply it by 36. That's how you get 75% of 36.
It would be 11.25 inches because 1800 divided by 160 is 11.25
It shows the distance between him and the coach getting the “motion” of his running time. It’s like the circle with the line in the middle...
Option C:
The equation which matches the graph above is y = 4x - 4.
Solution:
Take any two points on the graph of the line.
Let the points are (0, -4) and (1, 0).
Here, 
Slope of the line:



m = 4
y-intercept of the line is the point where the line crosses at y-axis.
Here, the line crosses at y-axis is (0, -4).
y-intercept, (c) = -4
Equation of a line is
y = mx + c
y = 4x + (-4)
y = 4x - 4
The equation which matches the graph above is y = 4x - 4.
Option C is the correct answer.