I'm not sure but i think its 6.4km per hour
Answer:
So if a line was parallel it would have same slope. You can search up what slope-intercept form means. But if you have an equation like this:
y = mx+b
The slope will be m. Your question is written in the form. 2/5 = m.
The slope is 2/5
The y-intercept is 4/5
1000 IS THE ANSWER EJN3;RVLGBPOIJGNTIOG;K
It would be 50%, because they have a 50/50 chance of getting their seat, even if the first wizard/witch got in the wrong seat.
1.24 maybe i hope it helps