Answer:
<h3>Undefined.</h3>
Step-by-step explanation:
<u><em>SLOPE FORMULA:</em></u>

y₂= (-8)
y₁=5
x₂=(-8)
x₁=(-8)
Solve & simplify.

Therefore, the slope is undefined.
Multiply by what? I do not understand the question?¿
Answer:
Hey there!
1.35 km/s would equal 3020 miles per hour.
Let me know if this helps :)