12.5 rounded to the nearest tenth, (I’m checking my answers so just the number will do thank you)

I think it's 13

Step-by-step explanation:

45

step-by-step explanation:

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