Elise Corporation has the following sales mix for its three products A, 25\%; 8, 30x; and C, 45%. Fixed costs total $540,000 and the whighted-overage contribution margin is $100. How many units of product A must be sold to break-even? Multiple Choice 1350 5,400 21,600 Cannot be determined besed on the information presented. None of the onwwers as correct