Answer
$(-2.57,7.05)$
Work Step by Step
By definition we have $x=r\cdot \cos(\theta)$ and $y=r\cdot \sin(\theta)$.
Here, we have $r=7.5 \text{ and } \theta=110^\circ$.
Hence, after plugging these in:
$x=7.5\cdot \cos(110^\circ)\approx-2.57$
$y=7.5\cdot \sin(110^\circ)\approx7.05$
The point has coordinates $(-2.57,7.05)$ in the rectangular coordinate system.