Answer:
4 19/24
......................................
◑﹏◐
I think the missing number should be
12.87
Answer:
or 
Step-by-step explanation:
The given absolute value inequality is 
Divide both sides of the inequality by -2 and reverse the inequality sign:

By the definition of the absolute value function;
Either
or 
Divide through the rightmost inequality by -1 and reverse the sign.
This implies that:
or 
(-1,-1)
I recommend photomath, it helps with all equations!