Aubrey worked at the concession stand during a recent sporting event at her high school. During the first hour of the event, she sold 11 orders of nachos and 18 tacos for a total of $64.95. During the second hour, she sold 6 orders of nachos and 15 tacos for a total of $43.20. Which of the following statements is true? A. An order of nachos costs $3.45 and a taco costs $1.50. B. An order of nachos costs $1.50 and a taco costs $3.45. C. An order of nachos costs $3.50 and a taco costs $1.45. D. An order of nachos costs $1.45 and a taco costs $3.50.