Hi :)
6 - x > -9
6 - 16 > -9
-10 > -9
What I did was substitued an integer for x that would just break even and then be more than -9.
40,000 + 10 + 6
easy peasy :)
Answer:
in total there are 80 subjects. I don't know what class width is though.
Step-by-step explanation:
Look at the graph
I think c but I'm not sure