$40% 0f 20 is 8
40% × 20 = (40/100) × 20 = 8
move the decimal to the left 6 times and you'll get .028578
<h3>Solution and Explanation:</h3>
If
and
are directly proportional, then they must have a common scalar.
To find
we must first find its scalar. If we let
be the scalar we can form the equation,
.
We are given the information that if
then
. We can use that in finding the scalar.

Now we can solve for
when
knowing that our scalar is
.

<h3>Answer:</h3>
when 
The slope of the parallel line is undefined and the slope of the perpendicular line is 0
<h3>How to determine the slope?</h3>
The equation is given as:
x = 1
The above do not have any y value.
This means that the slope of the line is undefined
i.e.
m = undefined
The slope of the parallel line is:
Slope = m
This gives
Slope = undefined
The slope of the perpendicular line is:
Slope =-1/m
This gives
Slope = -1/undefined
Slope = 0
Hence, the slope of the parallel line is undefined and the slope of the perpendicular line is 0
Read more about slopes at:
brainly.com/question/3605446
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