Points A, B, C, and D are on the circle below. If AD = 4x-5 and BC = 2x+8, what is the value of x? A.1.5
B.0.5
C.6.5
D.68

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.

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Landon wrote that 3−2.6=4. which statement about his answer is true?