Which expression has a value of 15 when n=7?​

19 - 28/n

n=7

19 - 28/7

19 - 4

=15

the answer is a

step-by-step explanation:

because your just changing the position of where the shape is

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