An object is located $43\mathrm{.}4$ cm to the left of a converging lens whose focal length is $49\mathrm{.}6$ cm $.($a$)$ Determine the image distance and $($b$)$ the magnification.

$($a$)$ Number

$1$

$287\mathrm{.}8$ Units

cm

$$

$($b$)$ Number $$ Units

No units