Write down the ratio 12:30 in the form 1:n

1:2.5

Step-by-step explanation:

Divide both side by 12 and you would get 1:2.5

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