Simplify: -8 (4a-3b)=

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.

If 3x+8=3x+8 is it one solution or no solution

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?