Answer:
though I can't answer number one and two
Explanation:
3.) -4...... -6 -4 is higher than -6 ,I can't find the sign to fill the blank in my phone
4. 0..... -8,. 0 is higher than -8
5. 2+(-5)= -10
6. x=0
7. c+0 which the figure replacing c is provided
which is -4 so -4+0 =-4
8. c+a which is -4+-8 = -12
9. can't answer