If you are trying to find the slope of a line that is perpendicular to another line, you would need to change the sign and change it to the fraction's reciprocal.
m = 
Change the sign of the slope:

Finally, make the reciprocal of the original slope (switching the numerator and denominator):

Simplify:
3
Final answer:

Answer:
$2560
Step-by-step explanation:
if 10%=256
then 10 times the amount 100% is 2560
Answer:
= 10
Step-by-step explanation:
w + 9
if, w = 1
SO...
1 + 9 = 10
Answer: 40$
Step-by-step explanation: before the mowing 20$ if half is on the game before game would be 40
34 is the answer I think hope this helps