In the given triangle ABC, angle A is 90° and segment AD is perpendicular to segment BC. PLEASE HELP I CANT FIGURE THIS OUT AT ALL 50 POINTS AND MARKING U SMARTEST THING! The figure shows triangle ABC with right angle at A and segment AD. Point D is on side BC. Part A: Identify a pair of similar triangles. Part B: Explain how you know the triangles from Part A are similar. Part C: If DB = 9 and DC = 4, find the length of segment DA. Show your work.

Type the correct answer in each box. use numerals instead of words. the average number of subscribers to an online magazine each year from 2010 to 2015 is given in the table below. the average number of subscribers to the online magazine in 2010 was the percent increase in the average number of subscribers in 2011 to the average number of subscribers in 2012 was %. the maximum average number of subscribers to the online magazine in the years shown was