How do i solve this? (picture attached)

Make the two negatives a positive since they are right next to eachother. that would then be:
9+1/2
Which you would then use normaal addition for and it would add up to:
9 1/2 or 9.5

I'm in 7th grade and I learned in chapter 2 that if there is two negatives (ex: 9 - - 2) you have to make the two negatives a positive, this is called "add a line, change the sign" therefore my example would equal 11. Your question
9 - (- 1/2) would actually be 9 + (+1/2) it's that easy
So the answer would be 9 1/2 ( positive)
I hate math but that's one of my fav tricks!

Anyone can me with these answers

This is impossible to answer without the graph from the if you post the graph then we can .