Answer:
the answer should be D, I'm so sry if its not
f(4) =0 because 4>0
f(-2) =-2 coz -2 lies between 0 and -3
f(-5) =2/-5
24) x = 16
I am not sure about #25
students =7+5*teachers
students = 7+5*12
students = 7+60
students = 67
