Answer:
C. -0.7
Explanation:
Given the equation:
[tex]\frac{1}{2}(-1.4m+0.4)=\boxed{\square}_{}m+0.2[/tex]First, distribute the bracket on the left-hand side:
[tex]\begin{gathered} \frac{1}{2}(-1.4m)+\frac{1}{2}(0.4) \\ =-0.7m+0.2 \end{gathered}[/tex]The number that makes the given expressions equivalent is -0.7.
The correct choice is C.