The following information is taken from Lab Works Canada: Number of Tests Performed Total Cost of Testing March 60,000 $216,800 April 50,000 $194,000 May 70,000 $239,600 June 80,000 $262,400 ALL WORK MUST BE SHOWN Required: Using the high-low method, determine the following: A. The variable cost per test. Round to 2 digits. B. The total fixed cost of operating the testing facility. C. What is the cost formula for Lab Works Canada? D. The expected cost for a month if 85,000 tests are performed