0 Question 9 A clothing business finds there is a linear relationship between the number of shirts.n,it can sell and the price,P, it can charge per shirt. In particular. historical data shows that 90E\") shirts can be sold at a price of $90, while 14000 shirts can be sold at a price of $60. Give a linear equation in the form PHI) that gives the price P they can charge for n shirts. You MUST show a clear progression of ideas on your separate paper that support your answer. mp... =: Round the value ofyour slope to three decimal places. Be careful to use the proper variable and use the Preview button to check your syntax before you submit your answer. 0 Question 10 Find the average rate ofchange of 9(3) : 12:3 1 from a: = 1to :1: = 4 You MUST show clear function notation for the average rate of change, as well as your work on your separate paper to support your answer. :1 0 Question 11 For the function re) 2 2::2 + z + 2, evaluate and fully simplify each of the following. Show all appropriate steps, making it very clear how you get to your nal answers. Make sure your answers are in simplest form