Jin needs to fence in his rectangular backyard. the fence will have one long section away from, but parallel to, the length of his house and two shorter sides connecting that section to the house. the length of jin’s house is (3x+ 4) yd and the area of his backyard is (9x2+ 15x+ 4) yd^2. how many yards of fencing will jin need? a. (6x+ 2) yd c. (9x+ 6) yd b. (9x+ 9) yd d. (12x+ 10) yd hint: ^2 means squared.