Sally has a part-time job mowing lawns. she charges $5 per hour.

if she has $242 at the end of the month how long has she spent mowing lawns in hours and minutes?

48 hours and 24 minutes

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