Will mark brainliest and rate 5/5

Alex drew a circle with right triangle prq inscribed in it, as shown below: the figure shows a circle with points p, q, and r on it forming an inscribed triangle. side pq is a chord through the center and angle r is a right angle. arc qr measures 80 degrees.

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2