Solving linear equations
Need explanation and
Answer

the answer would be 150 books

step-by-step explanation:

if you divide 300 by 2 you will get 150

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