Answer
$i=-5.0cm$
Work Step by Step
Use the magnification equation $$m=-\frac{i}{p}$$ to solve for $i$. $$i=-mp$$ Since a noninverted image must have a positive magnification value, $m=+0.50$. Using known values of $p=10cm$ and $m=+0.50$ to get an image distance of $$i=-(10cm)(0.50)=-5.0cm$$
