Ineed to know how do i do this in what's the answer to the question

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.

Tcan be concluded that % of the seniors would prefer to see more candid pictures in this year's edition of the yearbook.

Five infinity stones cost $16.80. what is the price per infinity stone ?