Assuming that the lion eats the same about each day,all you need is to divide the total pounds per weak by the days in a week
180/7=15.42857
ANSWER

EXPLANATION
According to the power property of logarithms:

The given logarithm is

When we apply the power property to this logarithm, we get,

He has come from the hole in the roof because the text states that he did not come from a door, a window, or a chimney, and that is the only answer that was left.