2. A circle of radius 10 inches has its center at the vertex C of an equilateral triangle ABC and passes through the other two vertices. The side AC extended through C intersects the circle at D. The number of degrees of angle ADB is:
(a) 15, (b) 30, (c) 60, (d) 90, (e) 120
1. If 8 · 2x = 5(y+8), then when y = -8, x =
(a) -4, (b) -3, (c) 0, (d) 4, (e) 8