Question: Question 6 (4 marks) Show all your work and put a box around your final answer. For the following expression, x + 4 4 2

Question 6 (4 marks) Show all your work and put a box around your final answer. For the following expression, x + 4 4 2 7x - 28 a. State any restrictions on the variable. b. Simplify.Question 7 (4 marks) Show all your work and put a box around your final answer. For the following expression, -4 3x - 6 c. State any restrictions on the variable. d. Simplify. Question 8 (4 marks) Show all your work and put a box around your final answer. Solve the following rational equation. 6 m - 3 m 12 - 3mQuestion 9 (5 marks) Show all your work and put a box around your final answer. Include a therefore statement. A train and a plane, starting at the same place, travel to the same destination, 1200 km in distance. The plane is 8 times faster than the train and takes 10 hours less time to get to the destination. What is the average speed of both vehicles

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