Answer
$$d=10$$
Work Step by Step
The distance $d$ between the two points $(x_{1},y_{1})$ and $(x_{2},y_{2})$ is given by
$$d=\sqrt {(x_{2}-x_{1})^{2} + (y_{2}-y_{1})^{2}}.$$
Substitute $x_{1}=-5$, $y_{1}=-5$, $x_{2}=1$ and $y_{2}=3$ and round to the nearest tenth.
$$d=\sqrt {(1-(-5))^{2}+(3-(-5))^{2}}=\sqrt {36+64}=\sqrt {100}=10 $$