Action-reaction forces : select one:
a. may be at right angles.
b. always act on the same object.
c. always act on different objects.
d. sometimes act on the same object.

i think its B)... im not sure so dont take it seriously

The height at which the ladder safely reach on the garage is 12 meters.

Explanation:

It is given that,

Height of the ladder, H = 13 foot

Bottom of the ladder, B = 5 feet

To find,

How high can the ladder safely reach on the garage?

Solution,

The ladder and the wall follows the Pythagoras theorem. 13 foot is the height of the ladder. Distance between wall and the ladder is 5 feet. Let L is the height at which the ladder safely reach on the garage. On using Pythagoras theorem we get :

L = 12 m

So, the height at which the ladder safely reach on the garage is 12 meters. Hence, this is the required solution.