Karen Sandberg, Your Competition in Suburban State U's T-Shirt Market

Multiple Choice

Karen Sandberg, your competition in Suburban State U's T-shirt market, has apparently been undercutting your prices and outperforming you in sales. Last week she sold 120 tie-dyed shirts for $12 each, 80 (low quality) crew shirts at $1 apiece, and 50 lacrosse T-shirts for $6 each. Use matrix operations to calculate her total revenue for the week. ​

A) $1,825
B) $1,821
C) $1,820
D) $1,810
E) $1,805