If P [X] = 0.5 , P [X U Y] = 0.9 and P [X|Y] = 0.4 , so P[Y]?

The triangles are similar. what is the value of x? show your work.

According to statistics a person will devote 32 years to sleeping and watching tv. the number of years sleeping will exceed the number of years watching tv by 18. over a lifetime, how many years will the person spend on each of these activities

Prove that (x-2)is factor of p (x)=2x³-3x²-17x+30