Can someone answer 15 16 and 17?

My maths is terrible (high school student whose strength is definitely not in maths) but I tried.

15) P = 32°
Explanation: The angle above is 90° so you know 3P - 6 has to equal 90° (3P - 6 = 90). If you rearrange it you'll get the answer.
90 + 6 = 3P
96 = 3P
96/3 = 32°

16) X = 135°
Y = 45°
Explanation: We know that in the middle of this shape all of those angles are 90° bc it has to equal 360°. I drew an imaginary line parallel to the middle horizontal line for both X and 3Y variables and just figured that 90° would be on both sides of the imaginary line. I somehow just got X = 135° (straight line 180° subtract half right angle 45°) (some of that supplementary stuff).

17) W = 20°
X = 82°
Y = 36°
V = 42°
Explanation: I assumed W would be 20° because on the opposite (the angle next to V) we see it is 20° (something to do with congruent angles). X is 82 because of congruent angles (82° on opposite side). I honestly just guessed Y would be 36° so I'm assuming i'm wrong but hopefully it'll give you something to think about.

15.
Solve for p:
(3p - 6)° = 90°

16.
Solve the simultaneous equations for x and y:
x° = 3y°
x° + y° = 180°

Problem 17 is illegible, but this is already two questions anyway, which is one past your allotment.

It's unreadable to quite understand the questions.