Answer:

Step-by-step explanation:
we know that
The given equation y=5 is a horizontal line (is parallel to the x-axis)
The slope of the given line is equal to zero
A perpendicular line to the given line is a vertical line (parallel to the y-axis)
so
The equation of a vertical line is equal to the x-coordinate of the point that passes through it
The point that passes through it is (-4,-6)
therefore
The equation of the perpendicular line is

Answer:
A. 0.2, 0.25, 0.2
B. the scores are a quarter of the whole
See attached graph: v is on the y-axis and t is on the x-axis
(10,5) would make the equation correct
29 percent = 29/100
So 29/100 x 20
= 5.8