First blank: not random Because he sent it to the top 5 students. Not random students throughout the grade.
second blank: I would guess not valid because it was not a random sample.
Answer:
600
3-4 months
Step-by-step explanation:
Answer:x=1
Step-by-step explanation:hope i helped
Answer:
341.5 because it makes the most sense
Answer:
28
Step-by-step explanation:
The y, Cost, seems to increase by 6 every ride. Using this idea adding 6 to 22 gives 28.