a A wireless phone company has a pricing scheme that includes 200 minutes' worth of phone usage in the basic $35. Each minute over and above the first 200 minutes of usage is charged at $0.40 per minute. a. Let u be the number of minutes of phone usage per month. What is the expression for the average cost per minutes if the value of x is between 0 and 200? (a) = 35/ Preview b. What is the expression for the average cost per minute if the value of I is in the interval (200, 1000). (1) = Preview syntax error c. If phone usage in a certain month is 1000 minutes, what is the average cost per minute. Round to the nearest cent