#### Answer

$$22.7$$

#### 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 $x_{1}=0$, $y_{1}=15$, $x_{2}=17$ and $y_{2}=0$ and round to the nearest tenth.
$$d=\sqrt {(17-0)^{2}+(0-15)^{2}}=\sqrt {289+225}=\sqrt{514}=22.7$$