# Question 13 of 20 50 50 points simplify 7x y 2z a 7z

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Question 13 of 20 5.0/ 5.0 Points Simplify: –7(x – y – 2z) A. –7z – 7y – 14z B. –7x + 7y – 14z C. –7x + 7y + 14z D. 7x – 7y – 14z
Question 14 of 20 5.0/ 5.0 Points Simplify: (2.4)(a – 0.2b + 3.5c)
Question 15 of 20 5.0/ 5.0 Points Simplify: 19x – y – 2z + x + 5y + 2z
C. 20x + 4y – 4z D. 20x + 4y Question 16 of 20 5.0/ 5.0 Points Solve: –x – 7 = –2x – 11
Question 17 of 20 5.0/ 5.0 Points The area of a triangle is 92 cm 2 . The base of the triangle is 8 cm. What is the height of the triangle? A. 11.5 cm B. 23 cm C. 4 cm D. 46 cm
Question 18 of 20 5.0/ 5.0 Points Simplify: –15y + 19y – 2y
Question 19 of 20 5.0/ 5.0 Points Simplify:–4(7x – 3y – z) – (–6)(9x – z + 2)
B. 26x + 12y – 2z + 12 C. 26x + 12y + 2z + 12 D. 26x + 12y – 2z – 12 Question 20 of 20 5.0/ 5.0 Points The population of Glendale this year is 3,200 more than half of last year’s population. The population this year is 26,300. Which equation could be solved to find last year’s population?