Convert the percent to a decimal.

12.5%

a.
0.00125

b.
0.125

c.
1.25

d.
12.5

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c