For questions 15-20, refer to the following matrices. 3 20 52 2 A => B = C = D= -1 3 15 6 15, Find the inverse of A. Hit answer frac ] 3-1 16. Find the inverse of B. H Find the missing matrix. 17. EA === -69 6 11 2 18. AF= = -17 2 22 For questions 21 & 22, solve each system of equations. 21. 2x - 3y = 32 x + 4y = -20 22. 2x + y z = 15 4x-3y + 7z = -11 x+y+z=2 For questions 23-24, solve each system of equations by using the inverse matrix method. 23. x + 4y = -19 -3x + 2y = -13 24. x + 4y = -2 -3x + 2y = 6 25. An advertisement from the back page of the Denton Chronicle: 1300 Sofa and love seat 1400 Sofa and two chairs How much does each piece of furniture cost individually? T1600 Sofa, love seat, one chair 26. The table below shows the percent of comedies, drama, and action videos available at a video store. Assume that the store has a collection of 3,405 general videos to be rented, 1,070 children's videos to be rented, and 1,225 videos for sale. Write and solve a system of equations to find out how many comedies, dramas, and action movies are at the store. Store Section Comedy Drama Action General rental 55% 65% 60% Children's rental 25% 10% 20% Videos for sale 20% 25% 20%