Johann has 3 sheets of wallpaper. each sheet of wallpaper has an area of 12 square feet. johann cuts the wallpaper into 1/3 square foot pieces. how many pieces are there altogether

Given: m∠ adb = m∠cdb ad ≅ dc prove: m∠ bac = m∠bca lol

M? aoc=96 ? space, m, angle, a, o, c, equals, 96, degree \qquad m \angle boc = 8x - 67^\circm? boc=8x? 67 ? space, m, angle, b, o, c, equals, 8, x, minus, 67, degree \qquad m \angle aob = 9x - 75^\circm? aob=9x? 75 ? space, m, angle, a, o, b, equals, 9, x, minus, 75, degree find m\angle bocm? bocm, angle, b, o, c:

How does percent markup and percent discount relate to percent of change?