Cost =$317,000+$16.40X where X= Number of Heart Stents. Last year, Alisha produced 90,000 stents. Actual maintenance costs for the year were as expected. Required: 1. What is the total maintenance cost incurred by Alisha last year? Round your answer to the nearest dollar. $ 2. What is the total fixed maintenance cost incurred by Alisha last year? Round your answer to the nearest dollar. $ 3. What is the total variable maintenance cost incurred by Alisha last year? Round your answer to the nearest dollar. $ 4. What is the maintenance cost per unit produced? Round your answer two decimal places. $ per unit 5. What is the fixed maintenance cost per unit? Round your answer two decimal places. $ per unit 6. What is the variable maintenance cost per unit? Round your answer two decimal places. $ per unit