Answer: 
Step-by-step explanation:
Draw a right triangle as the one shown attached.
In order to calculate the distance from the base of the ladder to the house, you can use the Pythagorean Theorem:

Where "a" is the hypotenuse and "b" and "c" are the legs of the triangle.
Solving for one of the legs:

You can notice that:

Therefore, substituting values into
, you get that the distance from the base of the ladder to the house, rounded to the nearest tenth, is:
