What are 9) ? 16. Robert wants to fence his rectangular for it the length of the lot is 3 meters longer than its width What is the perimeter of the of the rectangular lot if its width is y meters? A, 4x + 6 meters 3,64 meters C. 4x -- 6 meters D. 54 meters 17. Rose had ten roses (x) in e situations. 7 + the 18. In Grade 7- Sun, there are 20 girls and b boys. Which of the following expression represents the total number of students in the class? A. 20 - b B. 20 + b C.b-20 D.20b 19 I already have 7 pens, Mark give me 2 packs of​