Answer:
Undefined
Step-by-step explanation:
has a slope of 
, since it is a horizontal line. The only types of lines that are perpendicular to horizontal lines are vertical lines, which are usually in the form 
(where 
is any real number). Vertical lines have an undefined slope, so the answer is undefined. Hope this helps!
21.6 meters per hour
Solve by dividing 54 by 2.5
Answer:x=150
Step-by-step explanation:
Step 1: Subtract 1.2x from both sides.
0.8x+20−1.2x=1.2x−40−1.2x
−0.4x+20=−40
Step 2: Subtract 20 from both sides.
−0.4x+20−20=−40−20
−0.4x=−60
Step 3: Divide both sides by -0.4.
−0.4x
−0.4
=
−60
−0.4
Im not sure but i think its 45+9 x X
small x= times
big X = scenario
