Whenever it says divide just flip the fraction and change it to multiply
For 20% out of 100% it would be 1/5 as you need 5 20s for 100
According to the trigonometric functions, we can see that angle x can be found through the one that involves the adjacent side and the hypotenuse, which in this case is the cos,

then, if we apply the inverse we can find the value of x,

Answer:
The amswer would be 8.5 due to the length of the obeject