Add it up then you will get answer
Answer:
The number is
students
Step-by-step explanation:
From the question we are told that
The population mean is
The standard deviation is 
The sample size is n = 2000
percentage of the would you expect to have a score between 250 and 305 is mathematically represented as

Generally

So


From the z table the value of 
and 


The percentage is 
The number of students that will get this score is


I would say D, determine if it can be factored by grouping (sorry, I forgot to put in the answer here).
Answer:
The E came before H
Step-by-step explanation: