We would apply the mirror formula which is expressed as
1/f = 1/u + 1/v
Where
f is the focal length
u is the object distance
v is the image distance
From the information given,
u = 33.5
magnification = 0.253
Since it is a convex mirror, f is negative
v would also be negative since the image is virtual
magnification = v/u
Thus,
0.253 = v/u
v = 0.253u
v = 0.253 x 33.5
v = 8.48
Since v is negative,
image distance = - 8.48 cm
