needing help with 18,19, & 20

Question 18 (8 points) Sales Price = $100 per unit Variable cost = $65 per unit Overhead = $35,000 What is the contribution margin per unit (two decimal places) 'v Question 19 (8 points) Sales Price = $100 per unit Variable cost = $65 per unit Overhead = $35,000 What is the contribution margin percentage? Q/ Question 20 (8 points) Sales Price = $100 per unit Variable cost = $65 per unit Overhead = $35,000 What is the breakeven number of units