Answer:
7
Step-by-step explanation:
2-(-5)
2 + 5 --- opposite
=7
Answer:

Step-by-step explanation:
Sum the frequency column to find the total number of students
total = 2 + 9 + 5 + 5 + 3 = 24
number of students finished in less than 20 mins = 2 + 9 + 5 = 16
fraction of students =
= 
Answer:
it couldn't be uploaded so I just added in attachment!
Um i think that would probably be something like 2.2