PeachyEnough PeachyEnough 11-09-2018 Mathematics contestada 7. a. If AB = 5y - 4, BD = 7y + 3 and AD = 20y - 9, find the value of y. b. Use the value of y, to find AB, BD and AD. 8. Use the figure below to answer questions 8-10. Point B is the midpoint of Segment A C.. A a. Find x if AB = 4x and BC = 2x + 10. b. Use the answer for x to find the values of AB and BC. 9. a. Find x if AC = 3x - 1 and BC = 12 - x. b. Use the answer for x to find the value of AB. 10. a. Is it possible for AB = 10, BC = 2x + 5 and AC = 5x, given that point B is the midpoint? b. Why or why not?