For this we almost have the following equation:

We must match the equation to zero:

From here, we clear the value of t.
We have then:

We discard the negative root because we are looking for time:
Answer:
it will take him to reach the ground about:

seconds
Answer for angle x = 28.07
Given b=8 and c=17,
Unknown leg = 15
∠O = 61.93
∠P= 28.07
The answer would be 18 because if you put 3a+6a+a=180 (the degrees of a triangle) and solve it a becomes 18
The drop down menu is 561, 1268, 1760, and 2354