What type of solution does this equation have? * 4x + 8 = 4x + 8

no solution
one solution
infinite many solutions

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.

Explain why the following problem is an irrational answe

Adolphin jumps from 5 feet below the surface of the sea. jane wrote -5 to represent the death from which the dolphin jumped. what does zero represent in this situation?