Hanna shops for socks that cost $2.99 for each pair and blouses that cost $12.99 each. Let x represent the number of pairs of socks purchased, and let y represent the number of blouses purchased. Which equation models the purchases she made with $43.92?

Each pair of socks costs $2.99, so x pairs cost 2.99x dollars. Each blouse costs $12.99, so y blouses cost 12.99y dollars. Adding those costs and setting the total equal to $43.92 gives 2.99x + 12.99y = 43.92, which is choice D.

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