So... 2n>30 and 5n<100. So if you divide out 2 and 5, you get n>15 and n<20. Therefore 15<n<20
(6,-3) m=-3
formula is y=mx+c
substitute: -3= 3(6)+c
-3=-18+c (takeaway 18 from both sides)
-15=c
Rewrite equation in form y=mx+c
Therefore answer is y=-3x-15
I think this is how u do it from what I can remember :)
Theres no linked picture.