dilation for general measure

Question

I know that for the Lebesgue measure on $\mathbb{R}^n$, it holds that

For $A \subseteq \mathbb{R}^n$, $$m(A + t) = m(A)$$ and

$$ m(\lambda A) = \lambda^n m(A)$$ for $\lambda > 0.$

Is this true in general for any Borel measure?