You went to the mall with $52.50. You bought three shirts that each cost x
dollars. Which expression represents the amount of money, in dollars,
that you had left after you bought the shirts? *

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