Barclay enterprises manufactures and sells three distinct styles of bicycles: the youth model sells for $300 and has a unit contribution margin of $105; the adult model sells for $850 and has a unit contribution margin of $450; and the recreational model sells for $1,000 and has a unit contribution margin of $500. the company's sales mix includes: 5 youth models; 9 adult models; and 6 recreational models. if the firm's annual fixed costs total $6,500,000, calculate the firm's break-even point in composite units (rounded to the nearest whole unit). multiple choice 858 composite units. 429 composite units. 6,161 composite units. 15,150 composite units. 7,575 composite units.