Answer:
23.
Using Thales theorem, we have:
AP/BP = AQ/CQ
=> 8/40 = x/45
=> x = (45 · 8)/40 = 9
24.
Also using Thales theorem, we have:
5/6 = (x - 1)/12
x - 1 = (12 · 5)/6 = 60/6 = 10
x = 10 + 1 = 11
25.
Because we already have the bisector, we know that:
x/6.9 = 18.3/6.2
x = (6.9 · 18.3)/6.2 ≈ 20.4
Hopefully all of them are correct