Answer:
[tex]-9.5[/tex] is the best answer.
Step-by-step explanation:
Given the expression
[tex]x + (-y)[/tex]
putting x=1.2 and y=-10.72 in the expression
[tex]x\:+\:\left(-y\right)=1.2\:+\:\left(-10.72\right)[/tex]
[tex]=-9.52[/tex]
Therefore, -9.5 is the best answer.
