The image produced by an object is –10.0 cm from a concave mirror that has a focal length of 5.0 cm. the distance of the object from the mirror, rounded to the nearest whole centimeter, is cm.

The formula to calculate this is below.

1/f = 1/do + 1/di

where;
f = focal length
do = object distance
di = image distance

Our given as are follows.
f = 5.0 cm
di = –10.0 cm
do = ?

To calculate;

1/f = 1/do + 1/di
1/5.0 = 1/do + 1/10.0 cm
0.2 cm-1 = 1/do + 0.1 cm-1
0.2 cm-1 - 0.1 cm-1 = 1/do
1/0.1 cm-1 = do
10 cm = do

So the distance of the object from the mirror is 10 cm.

Ibelieve the answer is d. macula  hope my answer has you : )