Answer:
Part A: a histogram
Step-by-step explanation:
Part A:
A histogram would be the best to use since they gave values that are x - y, or a ranged amount for the score.
Part B:
You would set up each value for the scores on the bottom. You would make the number of students on the left in increments of 1 (1,2,3,4,5 etc. )
You would make the first value ( 0-4 ) go up to 4 students. The second value ( 5-9) would go to 5. The third value ( 10-14 ) would go to 2. The fourth and fifth values ( 15-19 and 20-24 ) would go to 3.
Remember

so

take the log of both sides

or

B is the answer
All sides of a square are equal, so set the two equations equal to each other and solve.
5x - 8 = 3x + 14
2x - 8 = 14
2x = 22
x = 11
Answer:
Option number 3 is an example of distribution
I believe the answer is x=2
Hope this helps! :D