No question was asked buy i'll try to answer anyway.
either im assuming its asking how many vans or how many missing seats.
26+32 58 students total,
You would need 6 vans to carry them, and 2 seats would be missing.
If this isnt what you were looking for please comment a question and i'll try to help
y/x = k
6.4/4 = 1.6
11.2 / 7 =1.6
16/10 = 1.6
20.8 /13 =1.6
This is a direct variation and the constant is 1.6
y=1.6x
Answer:

Step-by-step explanation:
To find the distance, we can use the distance formula:
when the given points are
and 
Plug in the points (-6.25,5) and (-3.75,2)

Therefore, the distance between the two coordinates is
, or approximately 3.91.
I hope this helps!
Answer:
neither
Step-by-step explanation:
The second and 3rd one can be modeled by by y = 100/x but the first one and the fourth one do not follow that, so the answer is neither. The first and fourth are y = 80/x
Put the values in and you will see the equations for yourself.
One
y = 80/2
y = 40
The 80 came from looking at this as an indirect variation. y = k/x
y = 40
x = 2
y = k/x
40 = k/2 Multiply both sides by 2
40 * 2 = k
k = 80
Two
y = k/x
20 = k/5
k = 20 * 5
k = 100