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Use this information for Rusty Co, to answer the question that follows. Rusty Co. sells two products, X and Y. Last year, Rusty sold 5,000 units of X and 35,000 units of Y. Related data are as follows: What was Rusty Co.'s sales mix last year? a. 60%X,40%Y b. 58%X,42%Y c. 12.5%X,87.5%Y d. 30%X,70%Y